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  <xs:element id="lunr_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableEntitySharesIssuedPerAcquireeShare" abstract="false" name="BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableEntitySharesIssuedPerAcquireeShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_OneMajorCustomerMember" abstract="true" name="OneMajorCustomerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_CustomerOneMember" abstract="true" name="CustomerOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_CustomerTwoMember" abstract="true" name="CustomerTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_CustomerThreeMember" abstract="true" name="CustomerThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_CustomerFourMember" abstract="true" name="CustomerFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_SecuritiesPurchaseAgreementMember" abstract="true" name="SecuritiesPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_IM2MissionContractForLunarPayloadServicesMember" abstract="true" name="IM2MissionContractForLunarPayloadServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_OrbitalReceivablesSalesMaximumTerm" abstract="false" name="OrbitalReceivablesSalesMaximumTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="lunr_WarrantyAndAfterSaleServiceCostLiability" abstract="false" name="WarrantyAndAfterSaleServiceCostLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_WarrantyAndAfterSaleServiceCostsDecreaseForPaymentsAndUse" abstract="false" name="WarrantyAndAfterSaleServiceCostsDecreaseForPaymentsAndUse" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_PaymentsForCashTransactionBonuses" abstract="false" name="PaymentsForCashTransactionBonuses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_CommercialInsuranceFinancingLiabilityCurrent" abstract="false" name="CommercialInsuranceFinancingLiabilityCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_SecuritizationLiabilityCurrent" abstract="false" name="SecuritizationLiabilityCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_WarrantyAndAfterSaleServiceCostLiabilityCurrent" abstract="false" name="WarrantyAndAfterSaleServiceCostLiabilityCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_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_BusinessCombinationConsiderationTransferredEquityInterestSharesIssuedForLiabilitiesAssumedNumberOfShares" abstract="false" name="BusinessCombinationConsiderationTransferredEquityInterestSharesIssuedForLiabilitiesAssumedNumberOfShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_BusinessCombinationRecognizedAssetAcquiredRestrictedCash" abstract="false" name="BusinessCombinationRecognizedAssetAcquiredRestrictedCash" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_BusinessCombinationRecognizedAssetAcquiredContractAsset" abstract="false" name="BusinessCombinationRecognizedAssetAcquiredContractAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_BusinessCombinationRecognizedAssetAcquiredAdvancesToSuppliers" abstract="false" name="BusinessCombinationRecognizedAssetAcquiredAdvancesToSuppliers" 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_BusinessCombinationRecognizedAssetAcquiredOrbitalReceivablesNoncurrent" abstract="false" name="BusinessCombinationRecognizedAssetAcquiredOrbitalReceivablesNoncurrent" 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_BusinessCombinationRecognizedLiabilityAssumedContractLiabilitiesCurrent" abstract="false" name="BusinessCombinationRecognizedLiabilityAssumedContractLiabilitiesCurrent" 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_BusinessCombinationRecognizedLiabilityAssumedPensionAndOtherPostretirementBenefitsNoncurrent" abstract="false" name="BusinessCombinationRecognizedLiabilityAssumedPensionAndOtherPostretirementBenefitsNoncurrent" 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_BusinessCombinationProFormaInformationProFormaIncomeLossAttributableToParentAfterTax" abstract="false" name="BusinessCombinationProFormaInformationProFormaIncomeLossAttributableToParentAfterTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_BusinessCombinationProFormaInformationProFormaIncomeLossAttributableToCommonShareholdersAfterTax" abstract="false" name="BusinessCombinationProFormaInformationProFormaIncomeLossAttributableToCommonShareholdersAfterTax" nillable="true" xbrli:periodType="duration" 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_CommercialMember" abstract="true" name="CommercialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_CivilMember" abstract="true" name="CivilMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_NationalSecurityMember" abstract="true" name="NationalSecurityMember" 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_IM3MissionContractForLunarPayloadServicesMember" abstract="true" name="IM3MissionContractForLunarPayloadServicesMember" 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_ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance" abstract="false" name="ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" 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_ContractWithCustomerLiabilityContractLossProvisionCurrent" abstract="false" name="ContractWithCustomerLiabilityContractLossProvisionCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" 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_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_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_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_OrbitalReceivablesCurrent" abstract="false" name="OrbitalReceivablesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_OrbitalReceivablesNetMember" abstract="true" name="OrbitalReceivablesNetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_NumberOfCustomersWithOrbitalReceivables" abstract="false" name="NumberOfCustomersWithOrbitalReceivables" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="lunr_ExpectedContractualCashFlowsFromOrbitalReceivables" abstract="false" name="ExpectedContractualCashFlowsFromOrbitalReceivables" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ExpectedContractualCashFlowsFromOrbitalReceivablesRemainderOfCurrentFiscalYear" abstract="false" name="ExpectedContractualCashFlowsFromOrbitalReceivablesRemainderOfCurrentFiscalYear" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ExpectedContractualCashFlowsFromOrbitalReceivablesYearOne" abstract="false" name="ExpectedContractualCashFlowsFromOrbitalReceivablesYearOne" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ExpectedContractualCashFlowsFromOrbitalReceivablesYearTwo" abstract="false" name="ExpectedContractualCashFlowsFromOrbitalReceivablesYearTwo" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ExpectedContractualCashFlowsFromOrbitalReceivablesYearThree" abstract="false" name="ExpectedContractualCashFlowsFromOrbitalReceivablesYearThree" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ExpectedContractualCashFlowsFromOrbitalReceivablesYearFour" abstract="false" name="ExpectedContractualCashFlowsFromOrbitalReceivablesYearFour" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_ExpectedContractualCashFlowsFromOrbitalReceivablesAfterYearFour" abstract="false" name="ExpectedContractualCashFlowsFromOrbitalReceivablesAfterYearFour" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_SecuritizationLiabilityNoncurrent" abstract="false" name="SecuritizationLiabilityNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_SecuritizationLiability" abstract="false" name="SecuritizationLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_FabricationOfCommercialCommunicationsSatelliteMember" abstract="true" name="FabricationOfCommercialCommunicationsSatelliteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_LesseeOperatingAndFinanceLeasesTermOfContract" abstract="false" name="LesseeOperatingAndFinanceLeasesTermOfContract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <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_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_LesseeFinanceLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="LesseeFinanceLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_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_TaxReceivableAgreementPercentOfCashTaxSavingsRequiredToBePaid" abstract="false" name="TaxReceivableAgreementPercentOfCashTaxSavingsRequiredToBePaid" 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_IntuitiveMachinesLLCMember" abstract="true" name="IntuitiveMachinesLLCMember" 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_CommonStockConversionRatio" abstract="false" name="CommonStockConversionRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_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_ClassOfWarrantOrRightPeriodBeforeWarrantsMayBeExercised" abstract="false" name="ClassOfWarrantOrRightPeriodBeforeWarrantsMayBeExercised" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="lunr_ClassOfWarrantOrRightWarrantsExercised" abstract="false" name="ClassOfWarrantOrRightWarrantsExercised" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_RestrictedStockUnitsRestrictedStockSharesMember" abstract="true" name="RestrictedStockUnitsRestrictedStockSharesMember" 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_BusinessCombinationRecognizedLiabilityAssumedDefinedBenefitPlanLiabilities" abstract="false" name="BusinessCombinationRecognizedLiabilityAssumedDefinedBenefitPlanLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_BusinessCombinationRecognizedLiabilityAssumedDefinedBenefitPlanLiabilitiesCurrent" abstract="false" name="BusinessCombinationRecognizedLiabilityAssumedDefinedBenefitPlanLiabilitiesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lunr_BusinessCombinationRecognizedLiabilityAssumedDefinedBenefitPlanLiabilitiesNoncurrent" abstract="false" name="BusinessCombinationRecognizedLiabilityAssumedDefinedBenefitPlanLiabilitiesNoncurrent" 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_ContingentConsiderationLiabilityMember" abstract="true" name="ContingentConsiderationLiabilityMember" 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_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_EarnoutUnitsMember" abstract="true" name="EarnoutUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_BusinessCombinationEarnOutUnitsIssuedOrIssuableNumberOfShares" abstract="false" name="BusinessCombinationEarnOutUnitsIssuedOrIssuableNumberOfShares" 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_StockHeldInEscrowReleasedAndIssuedShares" abstract="false" name="StockHeldInEscrowReleasedAndIssuedShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lunr_NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestPostBusinessCombination" abstract="false" name="NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestPostBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_UnvestedRSUsRSSsMember" abstract="true" name="UnvestedRSUsRSSsMember" 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_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_IBXPTXMember" abstract="true" name="IBXPTXMember" 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_VariableInterestEntityProfitsInterestPercent" abstract="false" name="VariableInterestEntityProfitsInterestPercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lunr_NumberOfCorePillars" abstract="false" name="NumberOfCorePillars" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_GoonhillyEarthStationLimitedMember" abstract="true" name="GoonhillyEarthStationLimitedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lunr_BusinessCombinationSharePriceConsecutiveTradingDayPeriod" abstract="false" name="BusinessCombinationSharePriceConsecutiveTradingDayPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="lunr_PaymentsToBeUsedToAcquireBusinessCashEscrowDeposit" abstract="false" name="PaymentsToBeUsedToAcquireBusinessCashEscrowDeposit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
