A unique concept could serve as an emergency power backup for future missions.
The SPHEREX mission will create multiple surveys of the near-infrared sky that will reveal the origins of life and perhaps the universe itself.
Automation of a key process may yield an eightfold boost to U.S. plutonium production, a promising development for deep-space exploration.
The NASA spacecraft detected signs of hydrated minerals on Bennu's surface, suggesting that the asteroid's larger parent body once hosted liquid water.
An art sculpture achieves orbit, 46P/Wirtanen becomes a naked-eye comet, and C/2018 V1 makes one last good pass.