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
- NuSTAR Caldb Update (02 Jul 2026)
The NuSTAR FPM caldb was updated to version 20260630. This release includes a new clock correction file, v230, using a new temperature model. Please see the release notes for more details. - AMS02SPEC - AMS-02 Spectral Results Catalog Updated (02 Jul 2026)
The AMS02SPEC database table has been updated with many additional spectral results obtained with the Alpha Magnetic Spectrometer experiment on the International Space Station (AMS-02). It is available in both Browse and Xamin. - IXPE Caldb Updated (29 Jun 2026)
The IXPE Caldb has been updated for the GPD (version 20260610) and XRT (version 20260609). Downloads are available from the IXPE Calibration page. Users can also access the HEASARC IXPE caldb via remote access. - IXPE Caldb Updated (29 Jun 2026)
The IXPE Caldb has been updated for the GPD (version 20260610) and XRT (version 20260609). Downloads are available from the IXPE Calibration page. Users can also access the HEASARC IXPE caldb via remote access. - Viewing tool updated (24 Jun 2026)
The Viewing tool's Sun angle constraint for NuSTAR observations has been updated to reflect the mission's new requirements. - xTime tool updated (22 Jun 2026)
A new version of the xTime mission date/time conversion tool has been released that adds support for the IXPE mission and fixes some long-standing issues with converting date/times that correspond to leap seconds and negative MET seconds (for all missions except RXTE and Swift).
- NuSTAR Caldb Update (02 Jul 2026)
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Upcoming Deadlines
- 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)
- 08/06/2026: Step 1 (Mandatory NOI) Deadline for Strategic Astrophysics Technology (SAT)
- 08/18/2026: Step 2 Deadline for Research Initiation Awards (RIA)
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Upcoming Meetings
- Supermassive Black Holes and Blue Notes: 2026 Jun 29 - Jul 03
- Observations and theory of classical nova transients: 2026 Jun 29 - Jul 03
- IXPE Proposers Workshop 2026: 2026 Jun 30
- To Be or not to Be : Understanding the star, the disk, and the stripped companions: 2026 Jul 13 - 17