We tend to view ourselves and the complex cells that build us as a distinct branch of the tree of life from the compact, ...

In February 1959, a group of hikers died in the mountains. The events sparked theories both scientific and conspiratorial.

Astronomers have investigated a puzzling binary star system in which two stars that may have formed together now show ...

The outer solar system once seemed like a quiet backwater. But a glut of tiny, strange moons with unruly orbits are coming ...

Only 6.6% of surveyed astrobiologists agreed that scientists had probably found extraterrestrial life on exoplanet K2-18b.

What you should know about hantavirus, why PCOS is getting a new name, and how some fish hide in an unusual spot ...