The Nuclear Spectroscopic Telescope Array Mission - NuSTAR

NASA's latest high-energy astrophysics observatory, NuSTAR, is the first focusing high-energy X-ray mission, opening the hard X-ray sky above 10 keV for sensitive study for the first time. During its mission, NuSTAR will search for black holes, map supernova explosions, and study the most extreme active galaxies.

NuSTAR is a Small Explorer mission led by Caltech and managed by JPL for NASA's Science Mission Directorate. The NuSTAR Mission web site can be found here. NuSTAR data are being archived at the HEASARC.


NuSTAR Frequently Asked Questions

NuSTAR Publications List Maintained at Caltech

NuSTAR Publications List Maintained at the HEASARC


Introduction to NuSTAR

NuSTAR was launched at 9 am PDT, June 13, 2012 on a Pegasus XL rocket which was dropped from a Lockheed L-1011 "TriStar" aircraft flying over the Pacific Ocean near the Kwajalein Atoll.

NuSTAR is the first mission to use focusing telescopes to image the sky in the high-energy X-ray (3 - 79 keV) region of the electromagnetic spectrum. Our view of the universe in this spectral window has been limited because previous orbiting telescopes have not employed true focusing optics, but rather have used coded apertures that have intrinsically high backgrounds and limited sensitivity.

During its two-year primary mission phase, NuSTAR has been observing selected regions of the sky in order to:

  1. Probe obscured active galactic nucleus (AGN) activity out to the peak epoch of galaxy assembly in the universe (at z <~ 2) by surveying selected regions of the sky;

  2. Study the population of hard X-ray-emitting compact objects in the Galaxy by mapping the central regions of the Milky Way;

  3. Study the non-thermal radiation in young supernova remnants (SNR), both the hard X-ray continuum and the emission from the radioactive element 44Ti;

  4. Observe blazars contemporaneously with ground-based radio, optical, and TeV telescopes, as well as with Fermi and Swift, so as to constrain the structure of AGN jets; and

  5. Observe line and continuum emission from core-collapse supernovae in the Local Group, and from nearby Type Ia events, to constrain explosion models.

NuSTAR has been approved to continue operations through 2018 by the 2016 NASA Astrophysics Senior Review of Operating Missions and to have a Guest Observer (GO) Program. Further information about GO proposals is available on the NuSTAR Proposals page.

Artist concept of Nustar in orbit

Latest News
  • NuSTAR CALDB Update (30 Aug 2017)
    The NuSTAR CALibration DataBase was updated on August 30, 2017 (CALDB version 20170817). This updates the NuSTAR clock correction file to version 74, valid through 2017-08-17.
  • News Story: NuSTAR Observed This Week's Solar Eclipse (24 Aug 2017)
    On August 21, for about two minutes across a swath of North America, Earth's moon passed in front of and completely blocked out the sun, causing a total solar eclipse. Countless people witnessed this rare phenomenon, the first total solar eclipse in North America in 38 years. Just last week, scientists at Caltech and JPL decided that NuSTAR, the Nuclear Spectroscopic Telescope Array, would watch with them.
  • NuSTAR CALDB Update (21 Aug 2017)
    The NuSTAR FPM CALDB at the HEASARC was updated to CALDB version 20170727. This CALDB patch is a required update for using saamode=3 now available with NuSTARDAS v1.8.0., released in HEASoft 6.22
  • NuSTAR CALDB Update (21 Jul 2017)
    The NuSTAR CALibration DataBase was updated on July 21, 2017 (CALDB version 20170720). This updates the NuSTAR clock correction file to version 73, valid through 2017-07-20.
  • NuSTAR CALDB Update (14 Jun 2017)
    The NuSTAR CALibration DataBase was updated on June 14, 2017 (CALDB version 20170614) This updates the NuSTAR clock correction file to version 72, valid through 2017-06-14.

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