Liabilities / Assets
47th percentile
Higher debt load relative to assets than 47% of similar nonprofits.
EIN 04-2741645 • 501(c)3 • Acton, MA
Profile
To inspire enduring curiosity and love of learning through interactive discovery, hands on inquiry and scientific investigation.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
47th percentile
Higher debt load relative to assets than 47% of similar nonprofits.
Liabilities / Revenue
67th percentile
Higher debt load relative to revenue than 67% of similar nonprofits.
Net Margin
38th percentile
Higher net margin than 38% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
30th percentile
Faster asset growth than 30% of similar nonprofits.
Revenue Growth
20th percentile
Faster revenue growth than 20% of similar nonprofits.
Assets
Down$12,714,046
Down $67,409 (-0.5%) from 2023
Liabilities
Down$1,907,241
Down $130,647 (-6.4%) from 2023
Net Assets
Up$10,806,805
Up $63,238 (+0.6%) from 2023
Revenue
Down$4,129,226
Down $431,896 (-9.5%) from 2023
Expenses
Up$4,101,486
Up $164,300 (+4.2%) from 2023
Net Income
Down$27,740
Down $596,196 (-96%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
To spark delight in learning by igniting curiosity and creativity in children and adults, as they discover together the joys of science, nature, and play.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $7,513,609 | $7,511,455 | ▼ $2,154 |
| Savings and Temporary Cash Investments | $1,918,895 | $3,332,903 | ▲ $1,414,008 |
| Investments in Publicly Traded Securities | $356,850 | $402,727 | ▲ $45,877 |
| Pledges and Grants Receivable | $566,369 | $316,748 | ▼ $249,621 |
| Cash and Non-Interest-Bearing Accounts | $1,324,663 | $116,894 | ▼ $1,207,769 |
| Accounts Receivable | $57,985 | $89,556 | ▲ $31,571 |
| Prepaid Expenses and Deferred Charges | $32,808 | $34,120 | ▲ $1,312 |
| Inventories for Sale or Use | $12,683 | $14,065 | ▲ $1,382 |
| Total Assets | $12,781,455 | $12,714,046 | ▼ $67,409 |
| Other Assets Total | $997,593 | $895,578 | ▼ $102,015 |
| Liabilities | |||
| Other Liabilities | $1,014,675 | $964,141 | ▼ $50,534 |
| Deferred Revenue | $409,210 | $407,526 | ▼ $1,684 |
| Accounts Payable and Accrued Expenses | $377,590 | $314,784 | ▼ $62,806 |
| Mortgage Notes Payable Secured by Investment Property | $236,413 | $220,790 | ▼ $15,623 |
| Total Liabilities | $2,037,888 | $1,907,241 | ▼ $130,647 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $10,517,729 | $10,014,687 | ▼ $503,042 |
| Net Assets With Donor Restrictions | $225,838 | $792,118 | ▲ $566,280 |
| Total Net Assets Fund Balance | $10,743,567 | $10,806,805 | ▲ $63,238 |
| Total Liabilities and Net Assets / Fund Balance | $12,781,455 | $12,714,046 | ▼ $67,409 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $6,634,941 | $2,420,581 | $9,055,522 |
| Other Land Buildings | $608,526 | $1,065,683 | $1,674,209 |
| Land | $244,200 | - | $244,200 |
| Equipment | $23,788 | $17,657 | $41,445 |
| Other Assets Org | $45,670 | - | - |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2024 | $356,135 | - | ▲ $46,592 | - | $402,727 |
| 2023 | $302,689 | - | ▲ $53,446 | - | $356,135 |
| 2022 | $369,219 | - | ▼ $66,530 | - | $302,689 |
| 2021 | $327,235 | - | ▲ $41,984 | - | $369,219 |
| 2020 | $288,428 | - | ▲ $38,807 | - | $327,235 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Marie Beam | Chief Executive Officer | FT | $179,994 | $11,770 | $191,764 |
| Tobey Fossey | Sr. Director of Development | FT | $152,423 | - | $152,423 |
| Neil Gordon | Former CEO (thru 12/2023) | - | $135,382 | - | $135,382 |
| Brindha Muniappan | Sr. Director of the Museum Experience | FT | $109,708 | - | $109,708 |
| Name | Title |
|---|---|
| Xuan Kong Phd | President |
| Ruth Agbaji | Vice President |
| Andrew Magee | Director |
| Anthony Dibona | Director |
| David Cote | Director |
| Harry Hollenberg | Director |
| Henry Houh | Director |
| J Kevin Nugent Phd | Director |
| Lisa Giglio | Director |
| Margaret a Ramsey | Director |
| Paula Bentinck-smith | Director |
| Sahana Purohit | Director |
| Samira Lawande | Director |
| Scott Harris | Director |
| Shelly Shaw | Director |
| Umair Zia | Director |
| Cheryl Beaudoin | Clerk |
| Jeffrey Glidden | Treasurer |
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| Dube Construction Management LLC | Construction Contractor | 3 RUNAWAY BROOK ROAD, Sterling, MA 01564 | $341,321 |
| Contribution Type | Contribution Count | Reported Amount | Valuation Method |
|---|---|---|---|
| Securities Publicly Traded | 220 | $81,686 | Fair Market Value (FMV) |
| Total Noncash Contributions | 220 | $81,686 | - |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $2,425,283 |
| Other Expenses | $1,676,203 |
| Total Fundraising Expense | $449,978 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $1,565,110 | $214,021 | $241,021 | $2,020,152 |
| Depreciation Depletion | $410,045 | $146,445 | $29,289 | $585,779 |
| Occupancy | $208,969 | $53,647 | - | $262,616 |
| Current Officers, Directors, Trustees, and Key Employees | $67,117 | $76,706 | $47,941 | $191,764 |
| Payroll Taxes | $125,727 | $22,087 | $22,087 | $169,901 |
| All Other Expenses | $45,577 | $52,771 | $6,905 | $105,253 |
| Information Technology | $27,295 | $25,275 | $7,022 | $59,592 |
| Office Expenses | $27,273 | $12,044 | $4,970 | $44,287 |
| Other Employee Benefits | $36,755 | $2,473 | $4,238 | $43,466 |
| Other Expenses | $108,199 | $71,218 | $40,250 | $40,250 |
| Interest | $25,558 | $9,128 | $1,826 | $36,512 |
| Insurance | $24,758 | $8,843 | $1,768 | $35,369 |
| Advertising | $10,298 | $8,826 | $10,298 | $29,422 |
| Fees for Services Accounting | - | $27,486 | - | $27,486 |
| Travel | $8,826 | - | - | $8,826 |
| Fees for Services Legal | - | $7,305 | - | $7,305 |
| Total Functional Expenses | $2,913,233 | $738,275 | $449,978 | $4,101,486 |
| Line Item | Amount |
|---|---|
| Total Expenses per Audited Statements | $4,208,170 |
| Expenses per Audited Statements | $4,101,486 |
| Total Expenses per Form 990 | $4,101,486 |
| Expenses Not Reported on Form 990 | $106,684 |
| Expenses Not Reported on Financial Statements | $0 |
| Line Item | Amount |
|---|---|
| Fundraising Gross Income | $100,063 |
| Fundraising Direct Expenses | $61,980 |
| Professional Fundraising Fees | $0 |
| Event | Gross Receipts | Gross Revenue | Direct Expenses | Net Income |
|---|---|---|---|---|
| Discovery Gala | $173,927 | $100,063 | $12,968 | $87,095 |
| Total Events | $173,927 | $100,063 | $61,980 | $38,083 |
| Liability | Amount |
|---|---|
| Finance Lease Liability | $914,799 |
| Operating Lease Liabilities | $49,342 |
“During the year ended december 31, 2024, the organization did not have any committees with the authority to act on behalf of the board of directors.”
“The organization's executive director and chief financial officer review a draft of the form 990, which is prepared by the organization's independent accountants. Any resultant comments and changes are incorporated into the form by the independent accountants. The form 990 is presented to the board of directors for final review. The board of directors has designated authorized individuals on the board of directors to review and comment on the form 990. The comments are presented to the organization's independent accountants for their review and incorporated into the form 990, as applicable. A final version of the form 990 is then reviewed by the cfo, ceo and the finance committee prior to its filing with the irs.”
“Members of the board of directors are required to file a statement on an annual basis disclosing any potential interests that could give rise to conflicts. Individuals with potential conflicts of interest are prohibited from participating in any deliberations or decisions that may be affected by a potential conflict of interest.”
“The board of directors and the board chair review and approve the ceo's compensation on an annual basis. All other employee salary raises are reviewed and approved by the ceo and members of the board of directors prior to implmenetation.”
“The organization's audited financial statements are available to the public via the website of a state regulatory agency as well as upon request. The organization's governing documents and conflict of interest policy are available upon request.”
“Discovery gala expenses -61,980. Cost of goods sold - inventory -44,704.”
“Discovery gala expenses 61,980. Cost of goods sold - inventory 44,704.”
“Endowment funds are used to further the exempt purpose of the organization.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 377590 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 314784 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 57985 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 89556 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TO SPARK DELIGHT IN LEARNING BY IGNITING CURIOSITY AND CREATIVITY IN CHILDREN AND ADULTS, AS THEY DISCOVER TOGETHER THE JOYS OF SCIENCE, NATURE, AND PLAY. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 10298 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 8826 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 10298 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 29422 |
| IRS990/AllOtherContributionsAmt | 0 | 1198074 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 6905 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 52771 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 45577 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 105253 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | MARIE BEAM |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 9782644200 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 177 MAIN STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | ACTON |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 01720 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 1324663 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 116894 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 47941 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 76706 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 67117 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 191764 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 341321 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 3 RUNAWAY BROOK ROAD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | STERLING |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 01564 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | DUBE CONSTRUCTION MANAGEMENT LLC |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | CONSTRUCTION CONTRACTOR |
| IRS990/ContriRptFundraisingEventAmt | 0 | 73864 |
| IRS990/CostOfGoodsSoldAmt | 0 | 44704 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 1430960 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 110120 |
| IRS990/CYOtherExpensesAmt | 0 | 1676203 |
| IRS990/CYOtherRevenueAmt | 0 | 219545 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 2368601 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 27740 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 2425283 |
| IRS990/CYTotalExpensesAmt | 0 | 4101486 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 449978 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 4129226 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 409210 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 407526 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 29289 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 146445 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 410045 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 585779 |
| IRS990/Desc | 0 | THE MUSEUM ENCOURAGES CHILDREN, FAMILIES, AND EDUCATORS TO EXPLORE THE WONDERS OF SCIENCE, NATURE, HUMANITIES, AND THE ARTS BY ENGAGING VISITORS IN POSITIVE, INNOVATIVE EXPERIENCES. THE EDUCATIONAL PROGRAMS AND HANDS-ON EXHIBITS MAKE CONCEPTS TANGIBLE SO CHILDREN OF ALL AGES ARE ABLE TO CONNECT THEIR NEW UNDERSTANDING WITH REAL LIFE. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 225838 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 792118 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 92 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 2913233 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 27486 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 27486 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 7305 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 7305 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 21 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/FormerOfcrDirectorTrusteeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 13 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 16 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 17 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 11770 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 21 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | XUAN KONG PHD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | RUTH AGBAJI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | JEFFREY GLIDDEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | CHERYL BEAUDOIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | PAULA BENTINCK-SMITH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | DAVID COTE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | ANTHONY DIBONA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | LISA GIGLIO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | SCOTT HARRIS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | HARRY HOLLENBERG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | HENRY HOUH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | SAMIRA LAWANDE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | ANDREW MAGEE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | J KEVIN NUGENT PHD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | SAHANA PUROHIT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | MARGARET A RAMSEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | SHELLY SHAW |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | UMAIR ZIA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | MARIE BEAM |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | TOBEY FOSSEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | BRINDHA MUNIAPPAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 21 | NEIL GORDON |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 179994 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 152423 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 109708 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 21 | 135382 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 21 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | CLERK |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | CHIEF EXECUTIVE OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | SR. DIRECTOR OF DEVELOPMENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | SR. DIRECTOR OF THE MUSEUM EXPERIENCE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 21 | FORMER CEO (THRU 12/2023) |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1981 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 1 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 1 |
| IRS990/FundraisingAmt | 0 | 73864 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 61980 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 100063 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 18 |
| IRS990/GovernmentGrantsAmt | 0 | 159022 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 4235910 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 16385 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 100379 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 18 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 4 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 7022 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 25275 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 27295 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 59592 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 1768 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 8843 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 24758 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 35369 |
| IRS990/InterestGrp/FundraisingAmt | 0 | 1826 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 9128 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 25558 |
| IRS990/InterestGrp/TotalAmt | 0 | 36512 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 12683 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 14065 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 110120 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 110120 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 356850 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 402727 |
| IRS990/IRPDocumentCnt | 0 | 26 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 3503921 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 7513609 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 7511455 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 11015376 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 0 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 0 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | TO SPARK DELIGHT IN LEARNING BY IGNITING CURIOSITY AND CREATIVITY IN CHILDREN AND ADULTS, AS THEY DISCOVER TOGETHER THE JOYS OF SCIENCE, NATURE, AND PLAY. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 236413 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 220790 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 10743567 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 10806805 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | 38083 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 38083 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 55675 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 55675 |
| IRS990/NetRentalIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 16385 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 16385 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 35498 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 10517729 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 10014687 |
| IRS990/NoncashContributionsAmt | 0 | 81686 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 53647 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 208969 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 262616 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 4970 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 12044 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 27273 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 44287 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 997593 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 895578 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 4238 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 2473 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 36755 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 43466 |
| IRS990/OtherExpensesGrp/Desc | 0 | PROFESSIONAL FEES |
| IRS990/OtherExpensesGrp/Desc | 1 | EDUCATION AND OUTREACH |
| IRS990/OtherExpensesGrp/Desc | 2 | EXHIBITS AND WORKSHOPS |
| IRS990/OtherExpensesGrp/Desc | 3 | DEVELOPMENT/EVENTS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 32363 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 40250 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 71218 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 105352 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 116374 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 108199 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 208933 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 116374 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 108199 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 40250 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 1014675 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 964141 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | SOLAR REVENUE |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | OTHER REVENUE |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 84075 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 25327 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 84075 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 25327 |
| IRS990/OtherRevenueTotalAmt | 0 | 109402 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 241021 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 214021 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 1565110 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 2020152 |
| IRS990/OtherWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 22087 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 22087 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 125727 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 169901 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 566369 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 316748 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 32808 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 34120 |
| IRS990/PrincipalOfficerNm | 0 | XUAN KONG |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | ADMISSIONS |
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