An artist’s conception illustrates the aftermath of a "kilonova," a powerful event that happens when two neutron stars merge.
In this image, Glover celebrated his birthday during his stay on the station.
Houston, Texas, is pictured in this near-overhead photograph from the International Space Station.
The Earth's atmosphere above the Pacific Ocean is illuminated during the first moments of an orbital sunrise.
The southern tip of Lake Michigan and a snow-covered Chicago, Illinois, are pictured from the International Space Station.
The aurora australis streams above the Indian Ocean in this picture from the International Space Station.
Astronaut Raja Chari tests using tools while wearing a spacesuit glove inside the Internmational Space Station's U.S. Quest airlock.
Astronaut Mark Vande Hei harvests plants growing for the Veggie PONDS experiment and collects samples for later analysis.
Northrop Grumman's Cygnus space freighter is pictured after its capture and installation to the International Space Station's Unity module.
NASA powered up its third RS-25 engine hot fire test of the new year Feb. 24, on the Fred Haise…
