Come analyze HEASARC, IRSA, and MAST data in the cloud! The Fornax Initiative is now welcoming all interested beta users.
HEASARC
NASA's designated multi-mission astronomy archive for cosmic astronomy datasets for observations in the extreme ultraviolet (EUV), X-ray, and gamma-ray wave bands, as well as for cosmic microwave background (CMB) datasets.LAMBDA
LAMBDA is a multi-mission NASA center of expertise for cosmic microwave background (CMB) radiation research; it provides CMB researchers with archive data from cosmology missions, software tools, and links to other sites of interest.Please wait for the query to run. You will be redirected to the search portal
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Archive
Data discovery and exploration can be done through the interactive Web Portal
(The classic Browse portal remains available.)
API access is available through the Xamin API, the astroquery Heasarc module, or the Virtual Observatory protocols using pyvo. -
Cloud & Platforms
HEASARC@SciServer is an analysis-ready platform where both data and software are available through the browser.
The HEASARC is also part of the NASA Fornax Initiative to build NASA's next generation cloud-based science platform.
HEASARC data are available in the cloud and on SciServer. -
Software
- HEASoft 6.35.2 is now available.
- HEASoft and XSPEC are available as conda packages.
- HEASoft and other high energy software (CAIO, XMM-SAS, Fermitools, Spex etc) are installed and available on SciServer.
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Latest News
- General Catalog of Variable Stars, Version 5.1, December 2025 (03 Jun 2026)
The latest version of this catalog of 62,221 confirmed variable stars (from Samus et al. 2017, ARep, 61, 80) is now available in both Browse and Xamin, as is an updated version of the related GCVS Suspected Variable Stars Catalog from the same authors. - XRISM AO3 Approved Target List Release (28 May 2026)
The list of AO3 approved targets is now publicly available . For each proposal submitted to NASA in response to the XRISM Cycle 3 call for Type-1 proposals, a detailed email with panel evaluation will be sent at a later date. - NuSTAR Caldb Update (28 May 2026)
The NuSTAR FPM caldb was updated to version 20260527. This release includes a new clock correction file, v228, using a new temperature model. Please see the release notes for more details. - NuSTAR Caldb Update (28 May 2026)
The NuSTAR FPM caldb was updated to version 20260527. This release includes a new clock correction file, v228, using a new temperature model. Please see the release notes for more details. - Swift SC CALDB updated (05 May 2026)
The Swift SC has been updated to version 20260505 to update the clock correction file to v172 ... - NuSTAR Caldb Update (04 May 2026)
The NuSTAR FPM caldb was updated to version 20260421. This release includes a new clock correction file, v227, using a new temperature model. Please see the release notes for more details.
- General Catalog of Variable Stars, Version 5.1, December 2025 (03 Jun 2026)
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Upcoming Deadlines
- 06/25/2026: Step 1 (Mandatory NOI) Deadline for Astrophysics Research and Analysis Program (APRA)
- 06/25/2026: Step 1 (Mandatory NOI) Deadline for Strategic Astrophysics Technology (SAT)
- 07/14/2026: Step 2 Deadline for Future Investigators in NASA Earth and Space Science and Technology
- 08/06/2026: Step 2 Deadline for Astrophysics Research and Analysis Program (APRA)
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Upcoming Meetings
- The X-ray Universe 2026: 2026 Jun 8 - 11
- HEACOSS-2026: High Energy Astrophysics and Cosmology in the era of all-sky surveys: 2026 Jun 15 - 19
- Galactic Frontiers 2026: Advancing X-ray Astronomy in a Multiwavelength Universe: 2026 Jun 15 - 18
- Breaking the limits 2026 - Super Eddington Accretion onto Compact Objects: 2026 Jun 22 - 26