Microsoft co-founder unveils space travel plans
December 14, 2011 | 10:35
A giant airplane that can in mid-flight launch a rocket carrying cargo and humans into orbit is the future of space travel, billionaire philanthropist and Microsoft co-founder Paul Allen said.
SpaceX aims to put man on Mars in 10-20 years
April 25, 2011 | 09:41
Private US company SpaceX hopes to put an astronaut on Mars within 10 to 20 years, the head of the firm said.
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