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The High Energy Astrophysics Science Archive Research Center (HEASARC) is the
primary archive for NASA's (and other space agencies') missions studying
electromagnetic radiation from
extremely energetic cosmic phenomena ranging from
black holes to the Big Bang. Since its
merger with the Legacy Archive for Microwave Background Data Analysis
(LAMBDA) in 2008, the HEASARC
archive contains data
obtained by high-energy astronomy missions observing in the
extreme-ultraviolet (EUV), X-ray, and gamma-ray bands, as well as data from
space missions, balloons, and ground-based facilities that have studied the
relic cosmic microwave background (CMB) radiation in the sub-mm, mm and
cm bands.
The HEASARC is a member of the NASA Astronomical
Virtual Observatories (NAVO) where we work with other NASA archives to
ensure comprehensive and consistent VO access to NASA mission datasets.
Users may now query the HEASARC's catalogs using VO-enabled services and
specialized tools. This page describes
how to get to the HEASARC VO-enabled
services and provides information on other HEASARC VO activities.
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Latest News
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- 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.
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HEASARC News
Upcoming Dates & Deadlines
Upcoming Astronomy Meetings
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