Magazine

Science

Previously understood that magnetic fields were directly related to rotation, so when I read that Mars, like Venus, didn’t have one, my understanding crumbled. What exactly causes magnetic fields in planets?

Exotic Objects

Black holes inhale vast quantities of dust and gases. Does dark matter also get consumed?

Stars

Weird Object: Carbon Spiral AFGL 3068

Galaxies

Weird Object: Hoags Object

Science

Weird Object: Milky Way Antimatter Fountain

Deep-Sky Objects, Exotic Objects

Weird Object: Crab Nebula

The Moon

The Mutus X

Astrophotography

Understanding wavelets

Telescopes and Equipment

Toys and compromises

Observing

Out-of-focus observing

Science

Big meets small

Exoplanets, Planets, Solar System

Would the thin atmosphere and absence of light pollution on Mars make for a fantastic night sky, or would martian dust/twilight spoil the view? Why don’t we have broad night-sky pictures?