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.

NASA observed GRB 250702B, a record-setting gamma-ray burst lasting days, likely caused by a black hole consuming a star, with data from multiple space and ground observatories.

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.

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 ...

For the first time, scientists have made a clear X-ray detection of chlorine and potassium in the wreckage of a star using data from the Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) ...

The space agency said supernovas typically brighten rapidly over a period of several weeks before they slowly start to dim. This example, however, took months to ...