Space.com

What's Hot This Week NASA Rover Begins Long Cruise to Mars by Mike Wall, SPACE.com Senior Writer The launch of the car-size Curiosity rover was just the beginning. Wheels on Mars: New Curiosity Rover Has Big Tracks to Fill by Nola Taylor Redd, SPACE.com Contributor The three rovers that have already explored Mars have left Curiosity with big tracks to fill. Sponsored by: How to Spot Planet Venus in the Sky Russia's Troubled Mars Probe Highlights Falling Space Debris Hazard Solar Eclipse Wows Lucky Skywatchers in New Zealand Photos: Amazing Views of November 2011 Solar Eclipse What's Next for Mars Exploration?