Famed TV actress Nichelle Nichols, who portrayed Lt. Uhura on the original 1960s Star Trek television series, autographs a poster…
A NASA T-38 training jet is seen as it flies over Washington, DC, Thursday, April 5, 2012. NASA, in cooperation…
This graphic depicts how the automatic ground collision avoidance system (Auto-GCAS) software application, tied to a small autopilot, can command…
A laboratory representation of the Deep Space Atomic Clock, with a quarter alongside the unit for size comparison, and without…
In this photo taken from the International Space Station, the European Space Agency’s Automated Transfer Vehicle-3 (ATV-3) is seen on…
