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HEASoft and XSPEC are now available as conda packages. See details ....

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.
Query the HEASARC database. Example queries.

Xamin Search Help

  • What ROSAT tables have information on 3c273:
    '3c 273' rosat or 3c273 rosat
  • Find long Chandra exposures:
    chanmaster exposure>10000 status='archived'
  • Tables of cataclysmic variables that include AM Her:
    'AM Her' cataclysmic
  • all of the long ROSAT observations of Messier objects in Scorpius:
    messier rosmaster a.constell='SCO' b.exposure>20000
More information and examples
  • Latest News

  • Upcoming Deadlines

    • 2025 Mar 27: TESS Cycle 8 General Investigator Proposal Deadline
    • 2025 Mar 28: Mentorship and Opportunities in STEM with Academic Institutions for Community Success (MOSAICS) Seed Funding Proposal Deadline
    • 2025 Apr 03: Step 2 proposal deadline for Astrophysics Pioneers program
    • 2025 May 15: XRISM Cycle 2 General Observer Proposal Deadline
  • Upcoming Meetings

    • First Galaxies - the building blocks of galaxies across cosmic time: 2025 Apr 07 - 11
    • Frontiers in X-ray Polarimetry (FiXP) Academy: 2025 Apr 07 - 11
    • AXIS Community Science Workshop: 2025 May 14 -16
    • XMM 25th Anniversary Conference: 2025 May 19 - 22