Magazine | Page 171 of 282 | Astronomy.com

Photos of recent comet flybys show their nuclei to be barbell-shaped rather than spherical. What are the forces or processes that produce this shape?

Sketching Hercules’ two clusters

A tale of two clusters

Deep-Sky Objects, Observing

A stellar summer planetary nebula

Exotic Objects, Solar System

Ask Astro: What are the chances of dark matter or a black hole ripping apart Earth?

How do astronomers know that the universe is 13.7 billion years old?

When black is white

The smell of space

How dense are giant gas clouds like the “Pillars of Creation”?

On Earth, methane is a flammable fuel. If you introduced a flame to the methane on Saturn’s moon Titan, would it burn?

Following Castor through the years

Access an astroimaging archive