The Nuclear Spectroscopic Telescope Array, or NuSTAR, mission will study the universe in high energy X-rays to better understand the dynamics of black holes, exploding stars and the most extreme active galaxies.

In addition to complementing astrophysics missions studying the universe in various spectra, NuSTAR, the first hard-focusing X-ray telescope to orbit Earth, is expected to greatly improve on observations from ground-based observatories.