New visions reveal the violent universe
The Fermi Gamma-Ray Space Telescope is peering into active galaxies, pulsars, and gamma-ray bursts — and even quantum gravity.
By Francis Reddy
What we've learned about a strange new world
Cassini's 5-year exploration has revealed the saturnian moon's atmosphere, mountains, dunes, rivers, lakes, and seas. And we should expect many more discoveries.
By Michael Carroll
Astronomy's 5 big questions
Science now looms closer than ever to solving the biggest mysteries in the universe.
By David J. Eicher
Totality crosses Easter Island
Here's what you need to know if you're planning to see July's solar eclipse.
By Joel Harris
Astro-Tech's AT6RC offers great imaging on a budget
High-quality optics and mechanics make this 6-inch Ritchey Chrétien telescope one astroimagers will appreciate.
By Phil Harrington
Astronomy, 2010, March