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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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- FITS File Verifier tool updated (16 Jan 2026)
The new version of the FITS File Verifier tool has been
reimplemented to be more robust and to use the latest version of the HEASoft
fitsverify command line tool. The tool has also been migrated to the HEASARC
website.
- IXPE Caldb Updated (16 Jan 2026)
The IXPE Caldb has been updated for the GPD (version 20260112). Please see the release notes for details. Downloads are available from the IXPE Calibration page. Users can also access the HEASARC IXPE caldb via remote access.
- HEAD Spring 2025 newsletter released (14 Jan 2026)
This newsletter is available now for your reading pleasure at your electronic HEAD newsstand !
- NASA PostDoctoral Fellowship - Deadline March 1, 2026 (14 Jan 2026)
The NASA Postdoctoral Program offers US and international
scientists the opportunity to advance their research while
contributing to NASA's scientific goals. The NPP supports fundamental
science; explores the undiscovered; promotes intellectual growth; and
encourages scientific connections. Selected by a competitive
peer-review process, NPP Fellows complete one- to three-year
Fellowship appointments that advance NASA's missions in Earth science,
planetary science, heliophysics, astrophysics, biological and physical
science, aeronautics and engineering, human exploration systems, space
operations, space technology, and astrobiology. Search for NPP
research opportunities here: NPP Research Opportunities.
- Swift SC CALDB updated (08 Jan 2026)
The Swift SC has been updated to version 20260107 to update the clock correction file to v170 ...
- NuSTAR Cycle 12 Now Accepting Proposals (21 Dec 2025)
The due date for NuSTAR Cycle 12 proposal submission is Jan 29, 2026. Proposals should be submitted via the HEASARC's ARK Remote Proposal System (RPS). For more information about this cycle, please visit the NuSTAR Proposal Guide Page.
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HEASARC News
Upcoming Dates & Deadlines
Upcoming Astronomy Meetings
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