NASA's Curiosity, the SUV-sized robot exploring Mars, is getting ready to spin its drill bit for the first time. Curiosity can probe an inch deep into Martian rock, deeper than any previous rover or lander.
NASA launched a new communication satellite from Cape Canaveral Air Force Station in Florida on Wednesday evening. This satellite is one of three expected to reach space between now and 2015, upgrading the agency's communication network.
Temperatures on Mercury can reach 800 degrees Fahrenheit, but around the north pole, in areas permanently shielded from the sun's heat, NASA's Messenger spacecraft found a mix of frozen water and possible organic materials.
In Musk's vision, the ambitious Mars settlement program would start with a pioneering group of fewer than 10 people, who would journey to the Red Planet aboard a huge reusable rocket powered by liquid oxygen and methane.