Magazine

Cosmology

How could the universe experience a period of inflation that would have resulted in faster-than-light travel?

Science

The Sun is a G2V star and Rigel is a B8Iab. How do astronomers get the classifications this precise?

Observing, Planets

Glorious Jupiter reigns all night

Science

What do the terms arcminutes (‘) and arcseconds (“) mean?

Stars

Where does the magnetism in neutron stars come from, as neutrons are neutral particles?

Science

Watch comets in action

Science, Solar System

What’s winter like in Antarctica?

Science

More images of the Helix Nebula

Observing

It’s element-ary

Astrophotography

How to get great star colors

Science

The AAVSO then and now

The Moon

The deep Moans round with many voices