Astronomy is a subject as vast and fascinating as the night sky itself. Humans have been charting out changes in the heavens for thousands of years. During that time, our species’ growing ...

A new introductory textbook called Astronomy has just been published by OpenStax, a national, non-profit project to develop high-quality, introductory textbooks that are free to students. The ...

As the Oxford astrophysicist Chris Lintott wryly notes in “Accidental Astronomy,” our very existence depended on a celestial accident some 66 million years ago, when “an asteroid coincidentally ...

Copernicus is inarguably one of the greatest minds of science. His contributions to modern astronomical understanding have earned him a permanent position in the hall of science's greatest (and ...