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  <xs:element name="SpaceXRideshareServiceAgreementMember" id="mnts_SpaceXRideshareServiceAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
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  <xs:element name="ConsiderationFromFundsLegallyAvailableMember" id="mnts_ConsiderationFromFundsLegallyAvailableMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
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  <xs:element name="DebtInstrumentDiscountRateInExcessOfInitialFaceValuePercentage" id="mnts_DebtInstrumentDiscountRateInExcessOfInitialFaceValuePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
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  <xs:element name="EffectiveIncomeTaxRateReconciliationResearchAndExperimentalExpenseCapitalizationAmount" id="mnts_EffectiveIncomeTaxRateReconciliationResearchAndExperimentalExpenseCapitalizationAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
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  <xs:element name="ClassOfWarrantOrRightBeneficiallyOwnedToExceedPercentage" id="mnts_ClassOfWarrantOrRightBeneficiallyOwnedToExceedPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="DebtInstrumentNumberOfTranches" id="mnts_DebtInstrumentNumberOfTranches" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
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  <xs:element name="ConvertiblePromissoryNotesMember" id="mnts_ConvertiblePromissoryNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
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  <xs:element name="JanuaryPreFundedWarrantsMember" id="mnts_JanuaryPreFundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="NovemberModifiedWarrantsMember" id="mnts_NovemberModifiedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PlacementAgentWarrantsMember" id="mnts_PlacementAgentWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="WarrantsAndRightsOutstandingExerciseTermAfterIssuance" id="mnts_WarrantsAndRightsOutstandingExerciseTermAfterIssuance" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="WarrantsAndRightsOutstandingFirstTerm" id="mnts_WarrantsAndRightsOutstandingFirstTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ClassOfWarrantOrRightGrossProceedsAndIssuedWarrantsCommissionPercentage" id="mnts_ClassOfWarrantOrRightGrossProceedsAndIssuedWarrantsCommissionPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="WarrantsAndRightsOutstandingSecondTerm" id="mnts_WarrantsAndRightsOutstandingSecondTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="UnauditedInterimFinancialInformationPolicyTextBlock" id="mnts_UnauditedInterimFinancialInformationPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ShareholderDerivativeLitigationMember" id="mnts_ShareholderDerivativeLitigationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="LitigationSettlementReformsMaintainedForAMinimumPeriod" id="mnts_LitigationSettlementReformsMaintainedForAMinimumPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="JanuaryModifiedWarrantsMember" id="mnts_JanuaryModifiedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DebtInstrumentContingentInterestDerivativeLiability" id="mnts_DebtInstrumentContingentInterestDerivativeLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="DebtInstrumentPrepaymentPenaltyFee" id="mnts_DebtInstrumentPrepaymentPenaltyFee" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="DebtInstrumentContingentInterestDerivativeLiabilityMarkToMarketAdjustments" id="mnts_DebtInstrumentContingentInterestDerivativeLiabilityMarkToMarketAdjustments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="DebtInstrumentNumberOfPeriodicPayments" id="mnts_DebtInstrumentNumberOfPeriodicPayments" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="NumberOfPromissoryNotes" id="mnts_NumberOfPromissoryNotes" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="DirectorsAndOfficersMember" id="mnts_DirectorsAndOfficersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" id="mnts_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
</xs:schema>
