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  <xs:element id="lunr_AccountsPayableBenchmarkMember" abstract="true" name="AccountsPayableBenchmarkMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_OneMajorSupplierMember" abstract="true" name="OneMajorSupplierMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_LanterisSpaceHoldingsLLCMember" abstract="true" name="LanterisSpaceHoldingsLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_KinetXInc.Member" abstract="true" name="KinetXInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_IntuitiveMachinesLLCMember" abstract="true" name="IntuitiveMachinesLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_ConvertibleSeniorNotesDue2030Member" abstract="true" name="ConvertibleSeniorNotesDue2030Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_IntuitiveMachinesLLCPriorInvestorsMember" abstract="true" name="IntuitiveMachinesLLCPriorInvestorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_ClassABCommonUnitsMember" abstract="true" name="ClassABCommonUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_MilestoneAxis" abstract="true" name="MilestoneAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="lunr_MilestoneDomain" abstract="true" name="MilestoneDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_TriggeringEventIIAMember" abstract="true" name="TriggeringEventIIAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_TriggeringEventIIIMember" abstract="true" name="TriggeringEventIIIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_SeriesAPurchaseAgreementMember" abstract="true" name="SeriesAPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_PreferredInvestorWarrantsMember" abstract="true" name="PreferredInvestorWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_EarnoutUnitsMember" abstract="true" name="EarnoutUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_FormerMembersOfAcquireeMember" abstract="true" name="FormerMembersOfAcquireeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_AccountingPoliciesLineItems" abstract="true" name="AccountingPoliciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="lunr_WorkingCapitalSurplusDeficit" abstract="false" name="WorkingCapitalSurplusDeficit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_BusinessCombinationConsiderationTransferredEquityInterestSharesIssuedForLiabilitiesAssumedNumberOfShares" abstract="false" name="BusinessCombinationConsiderationTransferredEquityInterestSharesIssuedForLiabilitiesAssumedNumberOfShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_BusinessCombinationConsiderationTransferredEquityInterestSharesIssuedForLiabilitiesAssumedValue" abstract="false" name="BusinessCombinationConsiderationTransferredEquityInterestSharesIssuedForLiabilitiesAssumedValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_BusinessCombinationConsiderationTransferredEquityInterestsIssuedandIssuableCashPaidPerAcquireeShare" abstract="false" name="BusinessCombinationConsiderationTransferredEquityInterestsIssuedandIssuableCashPaidPerAcquireeShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="lunr_BusinessCombinationConsiderationTransferredTransactionCostsAndOtherAdjustments" abstract="false" name="BusinessCombinationConsiderationTransferredTransactionCostsAndOtherAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_StockHeldInEscrowSharesRelatedToBusinessAcquisitionShares" abstract="false" name="StockHeldInEscrowSharesRelatedToBusinessAcquisitionShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_StockHeldInEscrowSharesRelatedToBusinessAcquisitionValue" abstract="false" name="StockHeldInEscrowSharesRelatedToBusinessAcquisitionValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_SaleOfStockTransactionCosts" abstract="false" name="SaleOfStockTransactionCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_StockPurchaseAgreementSharesSharesAuthorized" abstract="false" name="StockPurchaseAgreementSharesSharesAuthorized" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_CommonStockConversionRatio" abstract="false" name="CommonStockConversionRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_TaxReceivableAgreementPercentOfCashTaxSavingsRequiredToBePaid" abstract="false" name="TaxReceivableAgreementPercentOfCashTaxSavingsRequiredToBePaid" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_CommonStockVotingRightsNumberOfVotesPerShare" abstract="false" name="CommonStockVotingRightsNumberOfVotesPerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="lunr_ComputersAndSoftwareMember" abstract="true" name="ComputersAndSoftwareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_StockPurchaseAgreementLiabilityCurrent" abstract="false" name="StockPurchaseAgreementLiabilityCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_BusinessCombinationRecognizedAssetAcquiredIdentifiableIntangibleAssetContractAsset" abstract="false" name="BusinessCombinationRecognizedAssetAcquiredIdentifiableIntangibleAssetContractAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_BusinessCombinationRecognizedAssetAcquiredIdentifiableIntangibleAssetOperatingLeaseRightOfUseAsset" abstract="false" name="BusinessCombinationRecognizedAssetAcquiredIdentifiableIntangibleAssetOperatingLeaseRightOfUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_BusinessCombinationRecognizedLiabilityAssumedAccountsPayableAndAccruedExpensesCurrent" abstract="false" name="BusinessCombinationRecognizedLiabilityAssumedAccountsPayableAndAccruedExpensesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilityCurrent" abstract="false" name="BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilityCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_BusinessCombinationRecognizedLiabilityAssumedDeferredTaxLiabilityCurrent" abstract="false" name="BusinessCombinationRecognizedLiabilityAssumedDeferredTaxLiabilityCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilityNoncurrent" abstract="false" name="BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilityNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_CostReimburseableMember" abstract="true" name="CostReimburseableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_RevenueFromContractWithCustomerExcludingAssessedTaxPercent" abstract="false" name="RevenueFromContractWithCustomerExcludingAssessedTaxPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_RevenueNotFromContractWithCustomerPercent" abstract="false" name="RevenueNotFromContractWithCustomerPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_RevenuesPercent" abstract="false" name="RevenuesPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_ContractWithCustomerAssetUnbilledReceivable" abstract="false" name="ContractWithCustomerAssetUnbilledReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ContractWithCustomerAssetDeferredContractCosts" abstract="false" name="ContractWithCustomerAssetDeferredContractCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ContractAxis" abstract="true" name="ContractAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="lunr_ContractDomain" abstract="true" name="ContractDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_CommercialLunarPayloadServicesContractOneMember" abstract="true" name="CommercialLunarPayloadServicesContractOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_CommercialLunarPayloadServicesContractTwoMember" abstract="true" name="CommercialLunarPayloadServicesContractTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_CommercialLunarPayloadServicesContractThreeMember" abstract="true" name="CommercialLunarPayloadServicesContractThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_IM2MissionContractForLunarPayloadServicesMember" abstract="true" name="IM2MissionContractForLunarPayloadServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_IM4MissionContractForLunarPayloadServicesMember" abstract="true" name="IM4MissionContractForLunarPayloadServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_LaunchDelayFees" abstract="false" name="LaunchDelayFees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ContractWithCustomerLiabilityIncreaseFromEstimatedLossOnContract" abstract="false" name="ContractWithCustomerLiabilityIncreaseFromEstimatedLossOnContract" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ContractsVariableConsiderationMaximum" abstract="false" name="ContractsVariableConsiderationMaximum" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_LongTermContractPercentComplete" abstract="false" name="LongTermContractPercentComplete" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_ContractWithCustomerLiabilityContractLossProvisionCurrent" abstract="false" name="ContractWithCustomerLiabilityContractLossProvisionCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ContractWithCustomerLiabilityContractLossProvisionNoncurrent" abstract="false" name="ContractWithCustomerLiabilityContractLossProvisionNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_GovernmentAssistanceAwardAppliedToReimburseCosts" abstract="false" name="GovernmentAssistanceAwardAppliedToReimburseCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ContractLiabilitiesCurrentAbstract" abstract="true" name="ContractLiabilitiesCurrentAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="lunr_ContractWithCustomerLiabilityDeferredRevenueCurrent" abstract="false" name="ContractWithCustomerLiabilityDeferredRevenueCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ContractWithCustomerLiabilityAccruedLaunchCostsCurrent" abstract="false" name="ContractWithCustomerLiabilityAccruedLaunchCostsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ContractLiabilitiesNoncurrentAbstract" abstract="true" name="ContractLiabilitiesNoncurrentAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="lunr_ContractWithCustomerLiabilityDeferredRevenueNoncurrent" abstract="false" name="ContractWithCustomerLiabilityDeferredRevenueNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_FabricationOfCommercialCommunicationsSatelliteMember" abstract="true" name="FabricationOfCommercialCommunicationsSatelliteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_LunarProductionAndOperationsCenterLPOCMember" abstract="true" name="LunarProductionAndOperationsCenterLPOCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_ExpansionOfHeadquartersAtHoustonSpaceportMember" abstract="true" name="ExpansionOfHeadquartersAtHoustonSpaceportMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_NumberOfRealEstateLeases" abstract="false" name="NumberOfRealEstateLeases" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="lunr_NumberOfEquipmentLeases" abstract="false" name="NumberOfEquipmentLeases" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="lunr_NumberOfFinanceLeases" abstract="false" name="NumberOfFinanceLeases" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="lunr_LesseeOperatingLeaseAdditionalInvestment" abstract="false" name="LesseeOperatingLeaseAdditionalInvestment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_LesseeOperatingLeaseAdditionalAcres" abstract="false" name="LesseeOperatingLeaseAdditionalAcres" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:areaItemType"/>
  <xs:element id="lunr_LesseeOperatingLeaseNumberOfRenewalOptions" abstract="false" name="LesseeOperatingLeaseNumberOfRenewalOptions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="lunr_OperatingLeaseReductionToRightOfUseAssetAndLiabilities" abstract="false" name="OperatingLeaseReductionToRightOfUseAssetAndLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_LesseeOperatingLeaseAcresOfLandLeased" abstract="false" name="LesseeOperatingLeaseAcresOfLandLeased" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:areaItemType"/>
  <xs:element id="lunr_FinanceLeaseCost" abstract="false" name="FinanceLeaseCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_FinanceLeaseCashFlowsFromInvestingActivities" abstract="false" name="FinanceLeaseCashFlowsFromInvestingActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_LiveOakLoanAgreementMember" abstract="true" name="LiveOakLoanAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_LiveOakSecondAmendedAndRestatedLoanAgreementFacilityTwoMember" abstract="true" name="LiveOakSecondAmendedAndRestatedLoanAgreementFacilityTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_LiveOakSecondAmendedAndRestatedLoanAgreementMember" abstract="true" name="LiveOakSecondAmendedAndRestatedLoanAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_PershingLLCLoanAgreementMember" abstract="true" name="PershingLLCLoanAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_DebtInstrumentConvertibleTermsOfConversionAxis" abstract="true" name="DebtInstrumentConvertibleTermsOfConversionAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="lunr_DebtInstrumentConvertibleTermsOfConversionDomain" abstract="true" name="DebtInstrumentConvertibleTermsOfConversionDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_DebtConversionTermsOneMember" abstract="true" name="DebtConversionTermsOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_DebtConversionTermsTwoMember" abstract="true" name="DebtConversionTermsTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_CappedCallsMember" abstract="true" name="CappedCallsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_DebtInstrumentMinimumPrincipalAmountOutstandingAfterRedemption" abstract="false" name="DebtInstrumentMinimumPrincipalAmountOutstandingAfterRedemption" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_DerivativeInitialStrikePrice" abstract="false" name="DerivativeInitialStrikePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="lunr_DerivativeInitialCapPrice" abstract="false" name="DerivativeInitialCapPrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="lunr_DebtInstrumentVariableRateFloor" abstract="false" name="DebtInstrumentVariableRateFloor" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_DebtInstrumentCreditSupportFee" abstract="false" name="DebtInstrumentCreditSupportFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ProceedsFromGuarantor" abstract="false" name="ProceedsFromGuarantor" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_EffectiveIncomeTaxRateReconciliationExpectedIncomeTaxExpenseBenefit" abstract="false" name="EffectiveIncomeTaxRateReconciliationExpectedIncomeTaxExpenseBenefit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_EffectiveIncomeTaxRateReconciliationEarnOutFairValueActivityAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationEarnOutFairValueActivityAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_EffectiveIncomeTaxRateReconciliationFairValueOfWarrantLiabilities" abstract="false" name="EffectiveIncomeTaxRateReconciliationFairValueOfWarrantLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseIncomePassedThroughToPartnersAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseIncomePassedThroughToPartnersAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_EffectiveIncomeTaxRateReconciliationAcquiredInvestmentDeferredAdjustmentsAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationAcquiredInvestmentDeferredAdjustmentsAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_EffectiveIncomeTaxRateReconciliationEarnOutFairValueActivityPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationEarnOutFairValueActivityPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseIncomePassedThroughToPartnersPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseIncomePassedThroughToPartnersPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_EffectiveIncomeTaxRateReconciliationAcquiredInvestmentDeferredAdjustmentsPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationAcquiredInvestmentDeferredAdjustmentsPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_TaxReconciliationNotRequired" abstract="false" name="TaxReconciliationNotRequired" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="lunr_DeferredTaxLiabilitiesSection481aAdjustment" abstract="false" name="DeferredTaxLiabilitiesSection481aAdjustment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_SeriesAWarrantsMember" abstract="true" name="SeriesAWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_SeriesBWarrantsMember" abstract="true" name="SeriesBWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_PublicOfferingAndPrivatePlacementMember" abstract="true" name="PublicOfferingAndPrivatePlacementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_PublicOfferingMember" abstract="true" name="PublicOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_StockPurchaseAgreementMember" abstract="true" name="StockPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_CantorStockPurchaseAgreementMember" abstract="true" name="CantorStockPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_SellingStockholderMember" abstract="true" name="SellingStockholderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_CommitmentSharesMember" abstract="true" name="CommitmentSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_AfterYearFivePostClosingMember" abstract="true" name="AfterYearFivePostClosingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_AfterYearThreePostClosingMember" abstract="true" name="AfterYearThreePostClosingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_AfterYearFourPostClosingMember" abstract="true" name="AfterYearFourPostClosingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightWarrantsExercised" abstract="false" name="ClassOfWarrantOrRightWarrantsExercised" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_SaleOfStockAuthorizedAmountValue" abstract="false" name="SaleOfStockAuthorizedAmountValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_NumberOfVotesForEachShare" abstract="false" name="NumberOfVotesForEachShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="lunr_StockPurchaseAgreementValueSharesAuthorized" abstract="false" name="StockPurchaseAgreementValueSharesAuthorized" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_AdjustmentsToAdditionalPaidInCapitalRecapitalizationAdjustment" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalRecapitalizationAdjustment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_StockPurchaseAgreementSharesIssued" abstract="false" name="StockPurchaseAgreementSharesIssued" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_StockPurchaseAgreementResaleOfCommitmentSharesLessThan" abstract="false" name="StockPurchaseAgreementResaleOfCommitmentSharesLessThan" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_StockPurchaseAgreementSharesSoldByCounterparty" abstract="false" name="StockPurchaseAgreementSharesSoldByCounterparty" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_SaleOfStockAgentCommissionRatePerShareSoldMaximum" abstract="false" name="SaleOfStockAgentCommissionRatePerShareSoldMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_PreferredStockPercentageOfAccruedValue" abstract="false" name="PreferredStockPercentageOfAccruedValue" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_SubsidiaryOwnershipSharesNoncontrollingOwner" abstract="false" name="SubsidiaryOwnershipSharesNoncontrollingOwner" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_PreferredStockConvertibleConversionPricePercentage" abstract="false" name="PreferredStockConvertibleConversionPricePercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_TotalSharesOutstanding" abstract="false" name="TotalSharesOutstanding" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_TotalSharesIssued" abstract="false" name="TotalSharesIssued" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_TotalSharesAuthorized" abstract="false" name="TotalSharesAuthorized" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_PublicWarrantsPrivateWarrantsMember" abstract="true" name="PublicWarrantsPrivateWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_PrivateWarrantsMember" abstract="true" name="PrivateWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_SeriesAPreferredWarrantsMember" abstract="true" name="SeriesAPreferredWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_NewSeriesAPurchaseWarrantMember" abstract="true" name="NewSeriesAPurchaseWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_NewSeriesBPurchaseWarrantMember" abstract="true" name="NewSeriesBPurchaseWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_ConversionWarrantsMember" abstract="true" name="ConversionWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_NewSeriesAWarrantMember" abstract="true" name="NewSeriesAWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_NewSeriesBWarrantMember" abstract="true" name="NewSeriesBWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_NewSeriesABWarrantsMember" abstract="true" name="NewSeriesABWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_SeriesANewSeriesANewSeriesBWarrantsMember" abstract="true" name="SeriesANewSeriesANewSeriesBWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_ConversionSeriesAWarrantsMember" abstract="true" name="ConversionSeriesAWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_ConversionSeriesBWarrantsMember" abstract="true" name="ConversionSeriesBWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_GhaffarianEnterprisesLLCMember" abstract="true" name="GhaffarianEnterprisesLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_BusinessAcquisitionWarrantsAssumed" abstract="false" name="BusinessAcquisitionWarrantsAssumed" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightPeriodBeforeWarrantsBecomeExercisable" abstract="false" name="ClassOfWarrantOrRightPeriodBeforeWarrantsBecomeExercisable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightPeriodBeforeWarrantsCanBeTransferredOrSold" abstract="false" name="ClassOfWarrantOrRightPeriodBeforeWarrantsCanBeTransferredOrSold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightRedemptionPrice" abstract="false" name="ClassOfWarrantOrRightRedemptionPrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightPeriodForPriorWrittenNoticeBeforeRedemption" abstract="false" name="ClassOfWarrantOrRightPeriodForPriorWrittenNoticeBeforeRedemption" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightClosingPriceRequiredToRedeemWarrants" abstract="false" name="ClassOfWarrantOrRightClosingPriceRequiredToRedeemWarrants" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightPeriodInWhichStockMustReachMandatoryClosingPrice" abstract="false" name="ClassOfWarrantOrRightPeriodInWhichStockMustReachMandatoryClosingPrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightMaximumPeriodInWhichStockCanReachMandatoryClosingPrice" abstract="false" name="ClassOfWarrantOrRightMaximumPeriodInWhichStockCanReachMandatoryClosingPrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightNumberOfBusinessDaysNoticePriorToNoticeBeingSent" abstract="false" name="ClassOfWarrantOrRightNumberOfBusinessDaysNoticePriorToNoticeBeingSent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="lunr_ClassOfWarrantsOrRightsRedemptionPricePerUnitOfWarrant" abstract="false" name="ClassOfWarrantsOrRightsRedemptionPricePerUnitOfWarrant" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightAggregateRedemptionPriceAmount" abstract="false" name="ClassOfWarrantOrRightAggregateRedemptionPriceAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightPeriodBeforeWarrantsMayBeExercised" abstract="false" name="ClassOfWarrantOrRightPeriodBeforeWarrantsMayBeExercised" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="lunr_PublicPrivateWarrantsMember" abstract="true" name="PublicPrivateWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_WarrantSharesRollForward" abstract="true" name="WarrantSharesRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightWarrantsIssued" abstract="false" name="ClassOfWarrantOrRightWarrantsIssued" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightAdjustments" abstract="false" name="ClassOfWarrantOrRightAdjustments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightWarrantsRedeemed" abstract="false" name="ClassOfWarrantOrRightWarrantsRedeemed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_PerformanceStockUnitsPSUsMember" abstract="true" name="PerformanceStockUnitsPSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_RestrictedStockUnitsRSUsPerformanceStockUnitsPSUsMember" abstract="true" name="RestrictedStockUnitsRSUsPerformanceStockUnitsPSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_A2021UnitOptionPlanMember" abstract="true" name="A2021UnitOptionPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_OmnibusIncentive2023PlanMember" abstract="true" name="OmnibusIncentive2023PlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnvestedMaximumNumberOfSharesAchievable" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnvestedMaximumNumberOfSharesAchievable" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnvestedNumberOfPerformanceGoals" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnvestedNumberOfPerformanceGoals" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="lunr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnvestedPerformanceGoalsPercentage" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnvestedPerformanceGoalsPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="lunr_EarnOutLiabilityMember" abstract="true" name="EarnOutLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_WarrantLiabilityMember" abstract="true" name="WarrantLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_ContingentConsiderationLabilityMember" abstract="true" name="ContingentConsiderationLabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityReclassifiedToEquity" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityReclassifiedToEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_MeasurementInputDividendYieldMember" abstract="true" name="MeasurementInputDividendYieldMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_MeasurementInputVolatilityMember" abstract="true" name="MeasurementInputVolatilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_MeasurementInputProbabilityOfDissolutionEventMember" abstract="true" name="MeasurementInputProbabilityOfDissolutionEventMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_SecondSeriesAWarrantsMember" abstract="true" name="SecondSeriesAWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_SecondSeriesBWarrantsMember" abstract="true" name="SecondSeriesBWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_ThirdSeriesAWarrantsMember" abstract="true" name="ThirdSeriesAWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_ThirdSeriesBWarrantsMember" abstract="true" name="ThirdSeriesBWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_BusinessCombinationEarnOutUnitsVestedOrIssuableNumberOfShares" abstract="false" name="BusinessCombinationEarnOutUnitsVestedOrIssuableNumberOfShares" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_EarnOutUnitsVestedInPeriod" abstract="false" name="EarnOutUnitsVestedInPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_WarrantLiabilityMeasurementInput" abstract="false" name="WarrantLiabilityMeasurementInput" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="lunr_SAFEAgreementLiabilityMeasurementInput" abstract="false" name="SAFEAgreementLiabilityMeasurementInput" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="lunr_EscrowSharesMember" abstract="true" name="EscrowSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_ConvertibleNotesMember" abstract="true" name="ConvertibleNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_UnvestedRSUsMember" abstract="true" name="UnvestedRSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_VestedRSUsMember" abstract="true" name="VestedRSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_OutOfTheMoneyInstrumentsMember" abstract="true" name="OutOfTheMoneyInstrumentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_KBRIncMember" abstract="true" name="KBRIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_ASESMember" abstract="true" name="ASESMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_AerodyneMember" abstract="true" name="AerodyneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_XEnergyLLCMember" abstract="true" name="XEnergyLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_IBXLLCMember" abstract="true" name="IBXLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_AxiomSpaceIncMember" abstract="true" name="AxiomSpaceIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_SNSMember" abstract="true" name="SNSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_LLCKBRMember" abstract="true" name="LLCKBRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_XEnergyMember" abstract="true" name="XEnergyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_IXLLCJVMember" abstract="true" name="IXLLCJVMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_VariableInterestEntityProfitsInterestPercent" abstract="false" name="VariableInterestEntityProfitsInterestPercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_ReportableSegmentMember" abstract="true" name="ReportableSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_KamalGhaffarianMember" abstract="true" name="KamalGhaffarianMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_MichaelBlitzerMember" abstract="true" name="MichaelBlitzerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
