Alpha Centauri is the closest star to Earth, but not the closest star system. It's actually part of a triple star system.

Supernovas can briefly outshine entire galaxies and produce elements needed for life, like oxygen and gold.

The Milky Way galaxy got its name from Greek mythology. It was believed to be formed by milk from the breast of the goddess Hera.

Europa, a moon of Jupiter, is believed to have a subsurface ocean beneath its icy crust, making it a potential hotspot for extraterrestrial life.