Astronaut Training Ground: Underground | Terraforming 101 | Space Photos of the Week

Astronauts Emerge from Cave After Underground Spaceflight Training Six astronauts joined a crew that ventured underground in Sardinia, Italy to learn more about the skills needed for space exploration.
Incredible Technology: How to Use 'Shells' to Terraform a Planet Engineering a shell around the outside of a small planet could be the way to create a new home for humanity sometime in the future.
Solar Racers Take these Solar Racers outside and watch them tear down the street with the power of the sun! $7.95   $5.96
	Quick Fusion-Powered Trips to Mars No Fantasy, Scientists Say Sending astronauts to Mars aboard a superfast spacecraft powered by nuclear fusion may seem like a sci-fi dream, but it's entirely attainable, scientists say.
	In 'Gravity,' International Space Station Co-Stars with Sandra Bullock Several science experiments actually performed on the orbiting lab play a key role in the film.
	Government Shutdown Could Be Big Setback for NASA and Taxpayers, Former Astronaut Says Important science and spaceflight missions that need funding and attention are threatened by the ongoing government shutdown, former astronaut Tom Jones said.
	Best Space Photos of the Week - Oct. 5, 2013 Don't miss the many great space images from the week of Oct. 5, including a private spacecraft's first International Space Station arrival, the spectacular launch of a brand-new private rocket and Comet ISON as seen from Mars orbit.
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