In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

In October 1989, a blast from the sun flung out a stream of super-powered protons. This solar storm lasted for days and ...

The universe is at it again; scientists have been baffled by a discovery that turns all the knowledge they have on planetary ...

The Artemis II astronauts witnessed a solar eclipse from their Orion spacecraft during a historic flyby over the moon. Here's ...

After traveling a record distance from Earth, the Artemis II crew saw incredible things. “This continues to be unreal,” pilot ...

Artemis 2 astronauts witness a rare solar eclipse from beyond the moon during their historic lunar flyby. NASA's Artemis 2 ...

For a long time, it was thought that this [technique] required telescopes in space,” says John Mather, the Nobel ...

The comet has been on our radars since the summer of 2025, when the Asteroid Terrestrial-impact Last Alert System (ATLAS) ...

TOI-4616 b is an Earth-sized exoplanet orbiting an M-dwarf that offers a strong benchmark for studying atmospheric loss and ...

In March 2026, SETI Institute researchers contributed to a wide range of conversations about our solar system and the search ...

While there’s no single accepted definition of life, scientists agree on some of the key clues. Gases like oxygen, carbon dioxide and methane in a planet’s atmosphere can serve as possible indicators ...