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        <ExplanationTxt>AURA'S COMPENSATION POLICY SET STANDARDS AND PROCEDURES MONITORED AND ENFORCED BY THE HUMAN RESOURCE (HR) DEPARTMENT. THE HR DEPARTMENT PERFORMS A COMPARABILITY DATA ANALYSIS RELATED TO THE PRESIDENT'S, VICE PRESIDENTS'(VPS), CENTER DIRECTORS', AND CENTER KEY EMPLOYEES' COMPENSATION USING VARIOUS TOOLS AND EXTERNAL RESOURCES DURING THE HIRING PROCESS. THE ORIGINAL COMPENSATION DURING THE HIRING PROCESS FOR THE PRESIDENT IS REVIEWED AND APPROVED BY THE BOARD OF DIRECTORS. THE ORIGINAL COMPENSATION DURING THE HIRING PROCESS FOR THE DIRECTORS AND VPS IS REVIEWED AND APPROVED BY THE PRESIDENT. THE ORIGINAL COMPENSATION DURING THE HIRING PROCESS FOR CENTER KEY EMPLOYEES IS DETERMINED BY THE RESPECTIVE CENTER DIRECTOR. THE PRESIDENT'S TOTAL COMPENSATION IS REVIEWED EACH YEAR AND COMPARED TO COMPENSATION BENCHMARKS FOR COMPARABLE COMPANIES. ANNUALLY, MERIT INCREASES FOR THE PRESIDENT, DIRECTORS, AND CENTER KEY EMPLOYEES ARE REVIEWED AND APPROVED BY THE BOARD OF DIRECTORS AND THE VPS COMPENSATION IS REVIEWED AND APPROVED BY THE PRESIDENT. AURA'S HR DEPARTMENT RETAINS THE DOCUMENTATION OF THE COMPENSATION APPROVAL BY THE BOARD OF DIRECTORS. THE PROCESS DESCRIBED HERE WAS LAST COMPLETED IN 2025.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 4B</FormAndLineReferenceDesc>
        <ExplanationTxt>AURA, INC., THE RELATED ORGANIZATION, MAINTAINED A SUPPLEMENTAL NONQUALIFIED RETIREMENT PLAN FOR CHARLES MOUNTAIN. THERE WERE NO CONTRIBUTIONS, DISTRIBUTIONS, OR AMOUNTS VESTED INTO THE PLAN IN 2024.</ExplanationTxt>
      </SupplementalInformationDetail>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 8A</FormAndLineReferenceDesc>
        <ExplanationTxt>THERE IS NO DEDICATED VEBA TRUST BOARD; OVERSIGHT IS PERFORMED BY THE AURA AUDIT COMMITTEE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 8B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE RESULTS OF THE PERFORMANCE OF THE TRUST ARE REVIEWED ANNUALLY AT THE MEETING OF THE AUDIT COMMITTEE OF THE AURA BOARD. POLICY REGARDING PLAN ELIGIBILITY WOULD BE REVIEWED BY THE PERSONNEL POLICY COMMITTEE OF THE AURA BOARD AND ULTIMATELY APPROVED BY THE AURA BOARD ITSELF.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 WAS PREPARED BY THE ORGANIZATION'S INDEPENDENT CPA WITH INFORMATION PROVIDED BY MANAGEMENT. THE 990 IS REVIEWED AND APPROVED BY AURA SENIOR MANAGEMENT AND THE AUDIT COMMITTEE. ONCE THEIR REVIEW IS COMPLETE A COPY OF THE FORM 990 IS PROVIDED TO THE BOARD OF DIRECTORS PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S GOVERNING DOCUMENTS AND CONFLICT OF INTEREST POLICY ARE MADE AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
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        <DisregardedEntityName>
          <BusinessNameLine1Txt>ASSOCIATION OF UNIVERSITIES FOR RESEARCH IN ASTRONOMY INC</BusinessNameLine1Txt>
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          <AddressLine1Txt>1331 PENNSYLVANIA AVE NW 1475</AddressLine1Txt>
          <CityNm>WASHINGTON</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20004</ZIPCd>
        </USAddress>
        <EIN>860138042</EIN>
        <PrimaryActivitiesTxt>SCIENCE; RESEARCH IN ASTRONOMY</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>AZ</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>LINE 7</PublicCharityStatusTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>0</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>1</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>1</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
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</Return>