Dawn Returns from Cancellation
An artist's illustration of Dawn spacecraft. Image credit: NASA Click to enlarge Until last week, prospects for the Dawn mission…
What’s Up This Week – March 27 – April 2, 2006
Download our free "What's Up 2006" ebook, with entries like this for every day of the year. 110 Messier Objets.…
Book Review: Sky Watching
Walking a mile in another person's shoes will give you a great impression of their life and possibly a pair…
Astrophoto: The Veil Nebula Complex by Johannes Schedler
The Vela Nebula Complex by Johannes Schedler Floating like a vast, thin wreath on a sea filled with colorful, bright…
SpaceX Rocket Launch Fails
The maiden voyage of SpaceX's Falcon 1 rocket started well, but then went sour moments after launch. Onboard cameras, broadcast…
Microscopic Tunnels Carved by Martian Microbes?
A thin slice of the Nakhla meteor. Image credit: OSU Click to enlarge. Bacteria seem to live anywhere there's water.…
A Nearby Twin of the Sun
HD98618 would look almost identical to our Sun. Image credit: SOHO Click to enlarge. When astronomers start searching for evidence…
First Photo from Mars Reconnaissance Orbiter
A portion of the first full-resolution image returned by MRO. Image credit: NASA/JPL. Click to enlarge. After years of development…
Quasar Ignition in the Distant Universe
An illustration showing a quasar at the center of the galaxy. Image credit: NASA Click to enlarge Sometimes the supermassive…
Comets May Be the Source of Earth’s Water
The new comet is indicated by the blue arrow. Image credit: Gemini Observatory Click to enlarge Astronomers have discovered three…