Will dark energy steal all the stars?

Using powerful supercomputers as cosmic crystal balls, astronomers are peering into a future dominated by dark energy. ASTRONOMY reads our somber fortune.

Mysteries of the martian poles

As planetary scientists optically dig through millions of years of layered polar ice and dust, it is becoming clear that Mars is in the process of a climatic reversal.

Way too cool

One of the youngest pulsars known appears cooler and more dense than astronomers would have predicted, hinting at strange new form of matter.

Corvus, Crater, and Sextans

These constellations may appear modest, but the Crow, Cup, and Sextant hold a treasure of spectacular galaxies.

Mars – better than ever

The planet’s best appearance in recorded history promises grand views for all backyard observers. Don’t miss seeing the martian disk at its largest in your lifetime.

Testing a CCD trio

Not satisfied with results from your deep-sky film photography? Give CCD camers from SBIG and Starlight Xpress a chance.

Star-test your telescope

A simple test can diagnose a host of maladies in your telescope’s most vital organ: its optical system. Learn how to recognize the symptoms and find a cure.

Get up-and-go power

The careful ergonomic engineering and user friendly control system make the Nexstar 5i and 8i telescopes a pleasure to use. In minutes, you can observe objects that would otherwise be impossible to find.

Focus on finders

The best way to learn the sky is by star-hopping with an old-fashioned finder scope. Let’s meet a few finders that are grouped by design and function and discover the right finder for you.


This month in Astronomy
Beautiful universe
Bob Berman’s strange universe
Glenn Chaple’s observing basics
The sky this month
Ask Astro
New products
Book reviews
Coming events
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