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What's Hot This Week Russian Rocket Launches From South America in Space First by Mike Wall, SPACE.com Senior Writer The Soyuz rocket lofted to orbit two European Galileo navigation satellites. Space Station Commander Mike Fossum Answers Your Questions by Denise Chow, SPACE.com Staff Writer Space station commander Mike Fossum answered questions from SPACE.com readers while in orbit. Sponsored by: NASA Sets Guidelines to Preserve Apollo Moon Landing Sites Astronauts Dive Deep on Undersea 'Asteroid' Mission Comet-Seeded Alien Oceans Could Be Common New Mars Rover Powered By Plutonium The History & Structure of the Universe (Infographic)