Magazine

Astrophotography

The right number of images

Exoplanets, Planets, Solar System

Bright planets meet at dusk

Science

Hubble and the light-year

Solar System

How can six Trojan asteroids reside in Neptune’s L4 region without colliding?

Stars

I have always heard that everything we see is “star stuff” from previous stars that died after converting their hydrogen into heavier elements. So how is there any hydrogen left for the Sun and planets?

Milky Way

How old is the Milky Way, and has it merged with other galaxies along the way?

Galaxies

When galaxies collide

Science

Al Nagler’s legacy

Astronomy for beginners, Galaxies

Explore the Virgo cluster

Science

John Herschel’s notes from the Cape

Science

Astro April Fools

Astrophotography, Deep-Sky Objects

Deep-sky objects through the eyes of an Austrian imager