High-Tech Twin Towers

The brand-new Gemini observatory telescopes prepare to raise the bar on infrared astronomy.

Cosmic Intrigue

Globular star clusters hold ancient secrets about the earliest days of the galaxy.

Embracing the End

The vast future holds remnants of dead stars in collision, decay of particles, and eternal nothingness.

Catch a Gravity Wave

The LIGO observatory aims to put Einstein to the test.

Kids’ Corner: Reflections on Refractors

A small refractor can be the gateway to a lifetime of observing.

Observing Like a Pro

Kitt Peak’s advanced observing program lets you step into the driver’s seat with some pretty big scopes.

Celestial Portraits: Telescopium, Indus, and Pavo

Deep southern constellations hide a wealth of galaxies and a few clusters too.


Behind the Scenes
Talking Back
Sky Show
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Strange Universe
Star Stuff
Looking Ahead
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Ultimate Exposure