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      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>0</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
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      <GovernmentGrantsAmt>171055</GovernmentGrantsAmt>
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        <Desc>ADMISSIONS</Desc>
        <BusinessCd>611710</BusinessCd>
        <TotalRevenueColumnAmt>288261</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>288261</RelatedOrExemptFuncIncomeAmt>
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        <Desc>REGISTRATIONS</Desc>
        <BusinessCd>611710</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>173129</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>EVENTS</Desc>
        <BusinessCd>611710</BusinessCd>
        <TotalRevenueColumnAmt>150555</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>35854</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>114701</UnrelatedBusinessRevenueAmt>
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      <TotalProgramServiceRevenueAmt>611945</TotalProgramServiceRevenueAmt>
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        <ExclusionAmt>22075</ExclusionAmt>
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      <LessCostOthBasisSalesExpnssGrp>
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      <GainOrLossGrp>
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      <NetGainOrLossInvestmentsGrp>
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        <ExclusionAmt>-97</ExclusionAmt>
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      <FundraisingGrossIncomeAmt>101077</FundraisingGrossIncomeAmt>
      <ContriRptFundraisingEventAmt>56363</ContriRptFundraisingEventAmt>
      <FundraisingDirectExpensesAmt>53141</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>47936</TotalRevenueColumnAmt>
        <ExclusionAmt>47936</ExclusionAmt>
      </NetIncmFromFundraisingEvtGrp>
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      <CostOfGoodsSoldAmt>6524</CostOfGoodsSoldAmt>
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        <ExclusionAmt>9091</ExclusionAmt>
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      <OtherRevenueMiscGrp>
        <Desc>MISCELLANEOUS REVENUE</Desc>
        <BusinessCd>611710</BusinessCd>
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        <ExclusionAmt>10319</ExclusionAmt>
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      <OtherRevenueTotalAmt>10319</OtherRevenueTotalAmt>
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        <EOYAmt>21454086</EOYAmt>
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        <EOYAmt>93117</EOYAmt>
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        <BOYAmt>25181269</BOYAmt>
        <EOYAmt>23581634</EOYAmt>
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        <EOYAmt>138717</EOYAmt>
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      <UnsecuredNotesLoansPayableGrp>
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        <EOYAmt>1831766</EOYAmt>
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      <OtherLiabilitiesGrp>
        <BOYAmt>488052</BOYAmt>
        <EOYAmt>382138</EOYAmt>
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      <TotalLiabilitiesGrp>
        <BOYAmt>3051098</BOYAmt>
        <EOYAmt>2644816</EOYAmt>
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      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>21097031</BOYAmt>
        <EOYAmt>19795660</EOYAmt>
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      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>1033140</BOYAmt>
        <EOYAmt>1141158</EOYAmt>
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      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>22130171</BOYAmt>
        <EOYAmt>20936818</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>25181269</BOYAmt>
        <EOYAmt>23581634</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>-1304035</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>35986</NetUnrlzdGainsLossesInvstAmt>
      <PriorPeriodAdjustmentsAmt>74696</PriorPeriodAdjustmentsAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
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    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>1343611</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>458618</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1503398</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>701161</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>855418</CurrentTaxYearAmt>
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      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>79638</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>181950</CurrentTaxYearMinus3YearsAmt>
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        <CurrentTaxYearMinus1YearAmt>524272</CurrentTaxYearMinus1YearAmt>
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      <GrossReceiptsNonUnrltBusGrp>
        <CurrentTaxYearMinus4YearsAmt>41374</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>78725</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>94423</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>87797</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>101077</CurrentTaxYearAmt>
        <TotalAmt>403396</TotalAmt>
      </GrossReceiptsNonUnrltBusGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>1464623</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>719293</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1918209</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1313230</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1568440</CurrentTaxYearAmt>
        <TotalAmt>6983795</TotalAmt>
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      <AmountsRcvdDsqlfyPersonGrp>
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        <CurrentTaxYearMinus3YearsAmt>14448</CurrentTaxYearMinus3YearsAmt>
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      <SubstantialContributorsAmtGrp>
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      <SubstAndDsqlfyPrsnsTotGrp>
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        <CurrentTaxYearAmt>18000</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus1YearAmt>12265</CurrentTaxYearMinus1YearAmt>
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      <InvestmentIncomeAndUBTIGrp>
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        <CurrentTaxYearMinus3YearsAmt>14764</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>23474</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>12265</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>22075</CurrentTaxYearAmt>
        <TotalAmt>76906</TotalAmt>
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      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>1468951</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>734057</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1941683</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1325495</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1590515</CurrentTaxYearAmt>
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      <PublicSupportCY509Pct>0.84230</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.80550</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.01090</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00760</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
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    <IRS990ScheduleB documentId="RetDoc1234500001">
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        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
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        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
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        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
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        <InvestmentEarningsOrLossesAmt>25</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>26671</EndYearBalanceAmt>
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      <CYMinus1YrEndwmtFundGrp>
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        <InvestmentEarningsOrLossesAmt>53</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>26646</EndYearBalanceAmt>
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        <InvestmentEarningsOrLossesAmt>4</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>21557</EndYearBalanceAmt>
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      <EndowmentsHeldRelatedOrgInd>0</EndowmentsHeldRelatedOrgInd>
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      <OtherLandBuildingsGrp>
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        <BookValueAmt>40500</BookValueAmt>
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      <TotalBookValueLandBuildingsAmt>21454086</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>RETAINAGE PAYABLE</Desc>
        <Amt>335784</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>SECURITY RETAINERS</Desc>
        <Amt>32000</Amt>
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      <OtherLiabilitiesOrgGrp>
        <Desc>OPERATING LEASES</Desc>
        <Amt>14354</Amt>
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      <TotalLiabilityAmt>382138</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>1599197</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>35986</NetUnrealizedGainsInvstAmt>
      <OtherRevenueAmt>6524</OtherRevenueAmt>
      <RevenueNotReportedAmt>42510</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>1556687</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>1556687</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>2867246</TotExpnsEtcAuditedFinclStmtAmt>
      <OtherExpensesIncludedAmt>6524</OtherExpensesIncludedAmt>
      <ExpensesNotReportedAmt>6524</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>2860722</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>2860722</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE DONOR-RESTRICTED ENDOWMENT FUND IS TO BE USED FOR SUSTAINABILITY OF THE CENTER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CENTER IS EXEMPT FROM FEDERAL INCOME TAXES UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE AND BY VIRTUE THEREOF FROM NORTH DAKOTA INCOME TAXES. THE CENTER IS SUBJECT TO TAX ON INCOME UNRELATED TO ITS EXEMPT PURPOSE UNLESS THAT INCOME IS OTHERWISE EXCLUDED BY THE CODE. THE CENTER HAS PROCESSES IN PLACE TO ENSURE THE MAINTENANCE OF ITS TAX-EXEMPT STATUS; TO IDENTIFY AND REPORT UNRELATED INCOME; TO DETERMINE ITS FILING AND TAX OBLIGATIONS IN JURISDICTIONS FOR WHICH IT HAS NEXUS; AND TO IDENTIFY AND EVALUATE OTHER MATTERS THAT MAY BE CONSIDERED TAX POSITIONS. THE CENTER HAS DETERMINED THAT THERE ARE NO MATERIAL UNCERTAIN TAX POSITIONS THAT REQUIRE RECOGNITION OR DISCLOSURE IN THE FINANCIAL STATEMENTS FOR THE YEARS ENDED JUNE 30, 2025 AND 2024.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>COGS 6,524.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>COGS 6,524.</ExplanationTxt>
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        <Event1Nm>EINSTEIN ON WINE</Event1Nm>
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        <CharitableContriEvent1Amt>56363</CharitableContriEvent1Amt>
        <GrossRevenueEvent1Amt>101077</GrossRevenueEvent1Amt>
        <CashPrizesEvent1Amt>550</CashPrizesEvent1Amt>
        <NonCashPrizesEvent1Amt>15989</NonCashPrizesEvent1Amt>
        <FoodAndBeverageEvent1Amt>17568</FoodAndBeverageEvent1Amt>
        <EntertainmentEvent1Amt>5215</EntertainmentEvent1Amt>
        <OtherDirectExpensesEvent1Amt>13819</OtherDirectExpensesEvent1Amt>
        <GrossReceiptsTotalAmt>157440</GrossReceiptsTotalAmt>
        <CharitableContributionsTotAmt>56363</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>101077</GrossRevenueTotalEventsAmt>
        <CashPrizesTotalEventsAmt>550</CashPrizesTotalEventsAmt>
        <NonCashPrizesTotalEventsAmt>15989</NonCashPrizesTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>17568</FoodAndBeverageTotalEventsAmt>
        <EntertainmentTotalEventsAmt>5215</EntertainmentTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>13819</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>53141</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>47936</NetIncomeSummaryAmt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>CHRIS RIEDMAN, ERIC OLSON AND KAROL RIEDMAN HAVE A FAMILY RELATIONSHIP.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>MINIMUM NUMBER OF DIRECTORS CHANGED FROM 9 TO 12. DUTIES FOR THE DIRECTORS HAVE BEEN UPDATED. TERM LIMITS FOR DIRECTORS HAVE BEEN ADDED. DIRECTOR TERMS ARE NOW ORGANIZED INTO 4 CLASSES. DUTIES FOR THE VICE PRESIDENT HAVE CHANGED. QUALIFICATIONS FOR THE TREASURER HAVE BEEN ADDED. NEW OFFICERS OF PAST PRESIDENT AND GENERAL COUNSEL WERE ADDED.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>GATEWAY TO SCIENCE HAS MEMBERS AT THE FOLLOWING LEVELS: INDIVIDUAL $60 FAMILY/GRANDPARENTS $130 FAMILY PLUS $175 SUSTAINING $250, $500 &amp; $1,000 DISCOUNTS AVAILABLE FOR MILITARY, FIRST RESPONDERS, AND EDUCATOR FAMILIES BENEFITS OF MEMBERSHIP ARE: -FREE UNLIMITED ADMISSION TO GATEWAY TO SCIENCE FOR MEMBERS OF THE SAME HOUSEHOLD. -RECIPROCITY TO FELLOW ASTC CENTERS. -DISCOUNTS FOR PROGRAMS, BIRTHDAY PARTIES AND GIFT SHOP PURCHASES. -E-NEWS AND NOTICES OF UPCOMING EVENTS. -FAMILY PLUS &amp; SUSTAINING MEMBERSHIPS INCLUDE ADMISSION FOR UP TO 6 GUESTS PER VISIT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS PROVIDED TO ALL BOARD MEMBERS FOR THEIR REVIEW AND COMMENT PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>EACH BOARD MEMBER COMPLETES A CONFLICT OF INTEREST FORM AND CONFIRMS IN REGULAR SELF-ASSESSMENT IF ANY CHANGES HAVE OCCURRED. FORMS REVIEWED BY EXECUTIVE COMMITTEE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION IS REVIEWED ANNUALLY BY FINANCE COMMITTEE DURING BUDGET PROCESS. COMPARISON TO LOCAL MARKET IS CONDUCTED AS PART OF THIS PROCESS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION PROVIDES A COPY OF ALL ITS GOVERNING DOCUMENTS, FINANCIAL STATEMENTS, AND FORM 990 UPON REQUEST.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>990 PART 1 LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GATEWAY TO SCIENCE CENTER, INC. HAS EXPERIENCED HIGHER EXPENDITURES THAN REVENUE THE PAST TWO YEARS, AS ANTICIPATED, AS WE UTILIZED BUILT UP CASH RESERVES FOLLOWING THE OPENING OF A NEWLY CONSTRUCTED FACILITY.</ExplanationTxt>
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</Return>