Magazine | Page 175 of 278 | Astronomy.com

Hind’s Crimson Star gets brighter

Welcome to astronomy

Would I be able to see Saturn from the foggy surface of Titan?

How the Big Bang forged the first elements

Bob Berman’s Strange Universe: The dimensionless constant

Glenn Chaple’s Observing Basics: Star-hop around the Hare

Glenn Chaple’s Observing Basics: A double take

See more of Trouvelot’s artwork

How is it possible that scientists estimate that the universe is 13.7 billion years old, but more than 90 billion light-years across?

When scientists talk about the rotation of a black hole, what are they referring to? If we can’t see a black hole, how can we tell if it rotates?

Astrophotography

How to choose a camera for astroimaging

Mercury and Venus peak