A erupted with M1 and M6 class solar flares. Watch the fireworks in these views from NASA's Solar Dynamics Observatory.

A 4.1 magnitude earthquake rattled eastern Tennessee and was felt all through the Southeastern states.

Launched in 1972 by the Soviet Union, the spacecraft known as Kosmos 482 was part of a series of missions bound for Venus.

A Soviet-era spacecraft plunged to Earth on Saturday, more than a half-century after its failed launch to Venus. Its ...

Webb Space Telescope reveals a surprisingly clear atmosphere on planet TOI-421 b, helping scientists understand the evolution ...

The mission, scheduled for this year, is a significant milestone in the development of space-based solar power systems. If ...