Proxima Centauri: The Closest Star to the Sun

Proxima Centauri: The Closest Star to the Sun

Proxima Centauri is a red dwarf star near our Solar System. It is a small, cool red dwarf located about 4.24 light-years from Earth in the constellation Centaurus. Although it is our nearest stellar neighbor, Proxima Centauri is too faint to see with the naked eye....
Geologic Time: Earth’s 4.6-Billion-Year Calendar

Geologic Time: Earth’s 4.6-Billion-Year Calendar

Geologic Time provides the timeline scientists use to track Earth’s 4.6-billion-year history. Humans measure time in years or centuries, but Earth’s story spans millions and billions of years. During this vast period, mountains form, oceans open, and new plants and...