Decades of constant X-ray emission from the Helix Nebula’s white dwarf suggest debris from a Jupiter-sized planet steadily rains upon the star.

2024's gigantic solar storm gave the Earth two new temporary radiation belts, according to NASA's CubeSat mission. One of these belts could stay in place for a "very long time", according to NASA ...

Bell Labs built a giant antenna in Holmdel, New Jersey, in 1960. It was part of a very early satellite transmission system called Echo. By collecting and amplifying weak radio signals bounced off ...