NASA is getting ready to launch a new mission to observe a mysterious region of the solar atmosphere that may be crucial to understanding what powers space weather.
Scientists seek to gain answers to questions about the formation of stars and galaxies with the launch of the CIBER sounding rocket on June 4 from Wallops.
Coronal mass ejections that accompanied X-class flares early last week, arrived at Earth over the weekend and sparked a geomagnetic storm and aurora.
A NASA team built a first-of-a-kind testbed to simulate the distinctive signature of pulsars - which radiate in regular bursts anywhere from seconds to milliseconds.
This Hubble image shows the galaxy cluster Abell S1077. The matter condensed in such clusters is so high their gravity warps the fabric of spacetime.