Seeing the dawn of time

Cosmic inflation plugged gaping holes in the Big Bang theory — and opened up the world of the multiverse.

Postcards from Mars

Messages from two lonely rovers show the Red Planet still is wetter, dustier, and more complex than anyone imagined.

Before there was light

Astronomers are poised to explore the mysterious cosmic Dark Ages.

Jewels on velvet

In southern Ophiuchus, dark nebulae serve as backdrops for many globular clusters.

Star shower

The year’s best meteor shower, the Perseids, arrives this month.

Image like a pro

Producing high-quality astroimages takes practice. Here are some hard-won lessons I’ve learned along the way.

Paging through the past

Antique astronomy books are treasures you can collect.

Secret weapons

Nebula filters cut skyglow and let you see more with less.


This month in Astronomy
Bob Berman’s strange universe
Glenn Chaple’s observing basics
Phil Harrington’s binocular universe

I’m a little teapot …

The sky this month
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