Stars are born from vast clouds of gas and dust, known as nebulae, that are scattered throughout most galaxies. Over thousands to millions of years ...

A look at the evidence for the Earth being round or spherical. Aristotle’s reasoning is explained. The evidence includes a ship’s hull disappearing first over the horizon, the stars ...

The Serpens Nebula is a prime location for studying the formation of stars and planets. It is approximately 1,300 light-years from Earth.

A look at the evidence for the Earth being round or spherical. Aristotle’s reasoning is explained. The evidence includes a ship’s hull disappearing first over the horizon, the stars ...