Magazine

Cosmology

Our roots in the cosmos

Astrophotography

Galaxy groupings

Exoplanets, Planets

We often read of discovering exoplanets. How far away from Earth would we be “discovered” by another civilization with our current detection technology?

The Sun

A 12th-century sunspot enigma

Science

How do we know space is flat?

Astronomy for beginners

How were the constellation boundaries set?

Solar System

Asteroid awareness

Science

Laser crime and punishment

Deep-Sky Objects

Weird Object: Omega Centauri

Exotic Objects

Weird Object: Black Hole Cygnus X-1

Galaxies

Weird Object: ARP 220

Exoplanets, Planets, Robotic Spaceflight

Debra Fischer: All About Exoplanets