Satellites have detected powerful solar flares in the last two months, but this phenomenon has been recorded for over a century.
Narrow dense rings of comets are coming together to form planets on the outskirts of at least three distant solar systems, astronomers have found in data from a pair of NASA telescopes.
NASA has authorized a second extension of the Dawn mission at Ceres, the largest object in the asteroid belt between Mars and Jupiter.
NASA astronaut Shane Kimbrough posted this image on his Twitter account, @astro_kimbrough, with the caption. "Hawaii islands in sunglint. Some #EarthArt to end the day."
Two NASA astronauts are getting ready to go on their mission's third spacewalk on Friday. In the midst of those preparations, the Expedition 53 crew also worked on science gear exploring a wide variety of space phenomena.