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
- 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. - 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. - Chandra CALDB 4.12.4 installed at the HEASARC (28 Apr 2026)
The Chandra CalDB 4.12.4 is now installed in and available from the HEASARC CALDB. Chandra 4.12.4 was released by the CXC on April 28, 2026. - IXPE Caldb Updated (28 Apr 2026)
The IXPE Caldb has been updated for the GPD (version 20260424) and XRT (version 20260331). Downloads are available from the IXPE Calibration page. Users can also access the HEASARC IXPE caldb via remote access. - IXPE Caldb Updated (28 Apr 2026)
The IXPE Caldb has been updated for the GPD (version 20260424) and XRT (version 20260331). Downloads are available from the IXPE Calibration page. Users can also access the HEASARC IXPE caldb via remote access.
- Swift SC CALDB updated (05 May 2026)
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Upcoming Deadlines
- 07/14/2026: Step 2 Deadline for Future Investigators in NASA Earth and Space Science and Technology
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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