NuSTAR Proposals and Tools


While NuSTAR was initially approved by NASA as a 2-year Principal Investigator-led (PI-led) mission, NuSTAR has now been approved to continue operations through 2018 (subject to review by the 2016 NASA Astrophysics Senior Review of Operating Missions) and to have a dedicated Guest Observer (GO) Program. There are several opportunities for guest observers in the general scientific community to propose for NuSTAR observations.

Previous NuSTAR Guest Observer Program

  • Cycle 3 — June 1, 2017 through May 31, 2018
  • Cycle 2 — May 1, 2016 through May 31, 2017
  • Cycle 1 — April 1, 2015 through April 30, 2016

  • If you have any questions concerning NuSTAR or the NuSTAR GO program, visit the Feedback form.