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NuSTAR Celebrates Two Years of Science in Space

NuSTAR Celebrates Two Years of Science in Space

07.31.14 – NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, a premier black-hole hunter among other talents, has finished up its two-year prime mission, and will be moving onto its next phase, a two-year extension.

“It's hard to believe it's been two years since NuSTAR launched,” said Fiona Harrison, the mission's principal investigator at the California Institute of Technology in Pasadena. “We achieved all the mission science objectives and made some amazing discoveries I never would have predicted two years ago.”

>> Read More

Explorers News Continues

07.23.14NEOWISE Spots a Comet That Looked Like an Asteroid
07.11.14Out of An Hours-long Explosion, A Stand-In For The First Stars
07.03.14Comet Pan-STARRS Marches Across the Sky
07.02.14Iron ‘Fingerprints’ Point Astronomers to Supernova Suspects
06.27.14NASA's IRIS Solar Observatory After 1 Year in Space
06.19.14NASA's Swift Satellite Tallies Water Production of Mars-bound Comet
05.30.14NASA's IRIS Observes its First Gigantic Solar Eruption
04.25.14NASA's Spitzer and WISE Telescopes Find Close, Cold Neighbor of Sun
04.16.14Unexpected Teleconnections in Noctilucent Clouds
03.26.14The Search for Seeds of Black Holes

>> Explorers News Archive

Explorers 4 New Missions

NASA Selects Explorer Projects To Probe Earth's Upper Atmosphere
News Release 04.12.13 – NASA has selected a new satellite mission and a new space-based instrument to begin development as part of the agency's Heliophysics Explorer Program.
>> Find more on ICON

NASA Selects Explorer Investigations for Formulation
News Release 04.05.13 – NASA's Astrophysics Explorer Program has selected two missions for launch in 2017: a planet-hunting satellite and an International Space Station instrument to observe X-rays from stars.

NASA Taps the Power of Zombie Stars in Two-in-One Instrument 04.05.13 – NICER will not only reveal why neutron stars are the densest objects in nature, but also demonstrate navigation technology that could revolutionize…
>> Find more on NICER



The mission of the Explorers Program is to provide frequent flight opportunities for world-class scientific investigations from space utilizing innovative, streamlined and efficient management approaches within the heliophysics and astrophysics science areas.



The program seeks to enhance public awareness of, and appreciation for, space science and to incorporate educational and public outreach activities as integral parts of space science investigations.

Explorers Missions Status

  • Astro-H
    Launch Date: November 2015
    Phase C/D: Design & Development
  • GOLD
    Launch Date: 2017
    Phase B: Preliminary Design & Technology Development
  • ICON
    Launch Date: February 2017
    Phase B: Preliminary Design & Technology Development
  • NICER
    Launch Date: August 2016
    Phase B: Preliminary Design & Technology Development
  • TESS
    Launch Date: August 2017
    Phase B: Preliminary Design & Technology Development
  • For all Explorers Missions

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