Space.com

What's Hot This Week NASA's Next Mars Rover to Land at Huge Gale Crater By Denise Chow WASHINGTON - It's official: NASA's next Mars rover has a landing site, and it's a giant crater called Gale. NASA First Invaded Red Planet with Viking Mars Landing by Charles Q. Choi On Mars Day every year, people celebrate the first spacecraft to successfully land on Mars - NASA's Viking 1, which touched down on the Red Planet 35 years ago. Sponsored by: Spectacular Astronaut Photo Shows Final Space Shuttle's Fiery Trip Home Shuttle Workers Face Big Layoffs as NASA Fleet Retires Yes, Virginia, You Can Still Be an Astronaut New Pluto Moon Adds Another Chapter to Dwarf Planet's Saga Half of Americans Think Space Shuttle Retirement Bad for US, Poll Finds