The universe tells us its story mainly through light and other wavelengths of electromagnetic radiation. We learn about the planets, stars, and galaxies by their light—visible light, and also ...

The principle of relativity, as initially described by Galileo, posits that the laws of physics remain consistent regardless of an observer's relative motion. Einstein's special relativity ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

Astronomy magazine's Editor Emeritus, Dave Eicher, encourages pre-dawn observation of the zodiacal light. The zodiacal light is described as having a triangular, inverted cone-like appearance.

First Light! Astronomy on Tap brings professional astronomers and space enthusiasts out of the lecture hall and into local ...