November 29, 2011
Want to stay on top of all the space news? Follow @universetoday on Twitter Mars Science Laboratory, launched three days ago on the morning of Saturday, November 26, is currently on its way to the Red Planet – a journey that will take nearly nine months. When it arrives the first week of August 2012, [...]
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July 6, 2009
Escape velocity is the speed needed to break free of a planet’s gravitational pool. Under normal circumstances, it’s impossible to break free of the pull of gravity, especially on Earth. That’s a good thing; it’s what keeps our atmosphere and oceans in place. For spaceflight, this is the key barriers that has to be overcome [...]
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