Mars Express Confirms Liquid Water Once Existed on Mars’ Surface
ESA's Mars Express has confirmed findings by the NASA Mars Exploration Rovers that liquid water must have been present on…
Mars Express Finds a Buried Impact Crater
Now that its MARSIS radar instrument is working perfectly, ESA's Mars Express has turned up evidence of buried impact craters,…
What Mars Looked Like Billions of Years Ago
NASA researchers working with the Mars Exploration Rovers have released a new set of papers that describe conditions on Mars…
Teeny Tiny Solar System
Astronomers from Penn State University and the Harvard-Smithsonian Center for Astrophysics have found a miniature solar system in the making.…
Astrophoto: Rosette Nebula by Thomas Davis
Thomas Davis took this picture of NGC 2244 (open cluster) and Rosette Nebula on 22nd November, 2005. Tom took this…
Ice Volcanoes on Enceladus
Cassini has returned amazing photographs of ice volcanoes erupting from the surface of Saturn's moon Enceladus. On a previous pass…
Hayabusa Successfully Collects an Asteroid Sample
Japan's asteroid explorer, Hayabusa, successfully touched down onto the surface of asteroid Itokawa Saturday for the second time in a…
Shadows Cast By Venus
Have you ever heard that Venus can be so bright it can cast shadows? Well, very few people have ever…
A Supernova in Progress
This image taken by the Chandra X-Ray Observatory shows the ongoing expansion of supernova SN 1970G, which exploded more than…
Book Review: Why Explore?
Everyday, small children ask the darnedest things. Why is the sky blue? Where does the sun go at night? What's…