Gas within the cluster, which existed merely 1.4 billion years after the Big Bang, is at least five times hotter than ...

NASA is ramping up work on one large space telescope while also laying the groundwork for future observatories.

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

The discovery of thousands more galaxies with stars ringing their main disks could help astronomers study galactic evolution ...

NASA awarded three-year contracts to Astroscale U.S., BAE Systems, Busek, L3Harris, Lockheed Martin, Northrop Grumman and ...