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.


Latest News
  • Swift SC CALDB updated (03 Mar 2026)
    The Swift SC has been updated to version 20260302 to update the clock correction file to v171 ...
  • NuSTAR Caldb Update (02 Mar 2026)
    The NuSTAR FPM caldb was updated to version 20260223. This release includes a new clock correction file, v223, using a new temperature model. Please see the release notes for more details.
  • NuSTAR Caldb Update (02 Mar 2026)
    The NuSTAR FPM caldb was updated to version 20260223. This release includes a new clock correction file, v223, using a new temperature model. Please see the release notes for more details.
  • INTEGRAL Legacy Confernece (23 Feb 2026)
    The first INTEGRAL Legacy Conference will be organized by CEA and Paris-Saclay Universe Sciences Observatory on 19-23 October 2026 at the Institut Pascal on the Paris-Saclay University Campus.
  • NuSTAR Caldb Update (11 Feb 2026)
    The NuSTAR FPM caldb was updated to version 20260210. This release includes a new clock correction file, v222, using a new temperature model. Please see the release notes for more details.
  • NASA Summer Internships - Deadline Feb 27, 2026 (4 Feb 2026)
    NASA's Office of STEM Engagement (OSTEM) paid internships allow colleg-level students to contribute to the agency's mission to advance science, technology, aeronautics, and space exploration. OSTEM internships offer students an opportunity to gain practical work experience while working side-by-side with mentors who are research scientists, engineers, and individuals from many other professions. Internships may be full-time or part-time, at a NASA center or facility. Join our NASA team and gain valuable on-the-job experience, build your resume, and strengthen your career readiness. We offer three sessions annually, so visit our website often for opportunities.

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Last modified: Wednesday, 02-Apr-2025 15:14:15 EDT