A newly discovered impact craters on Mars, captured in striking detail by NASA’s Mars Reconnaissance Orbiter. The image, ...
The record-setting cosmic outburst was actually a gamma-ray burst, the most powerful class of cosmic explosions.
HOUSTON, Texas -- A very special item tucked quietly away aboard NASA's Space Shuttle Challenger before it exploded has finally made it to space, 31 years after the accident. "It was amazing the ...
Astronomers tracked a gamma-ray burst lasting over 7 hours, unseen in visible light, from a dusty galaxy 8 billion light-years away, challenging existing models and raising new questions for science.