NuSTAR Bringing the High Energy Universe into Focus

The selection of proposals for NuSTAR General Observer (GO) cycle-8 has been announced. 81 proposals were selected from the 165 proposals submitted to cycle-8 and include joint coordinated observations with the XMM-Newton, Gehrels-Swift, and NICER observatories.

A design quirk in the X-ray observatory has made it possible for astronomers to use previously unwanted light to study even more cosmic objects than before.

The planet’s auroras are known to produce low-energy X-ray light. A new study finally reveals higher-frequency X-rays and explains why they eluded another mission 30 years ago.