Astronaut muscles waste in space

Astronaut muscles waste away on long space flights reducing their capacity for physical work by more than 40%, according to research published online in the Journal of Physiology.

US ramping up private sector's role in spaceflight

The first flight of a commercial vessel to the International Space Station in late April will signal a bigger role for the private sector and open up space tourism opportunities, industry experts and lawmakers say.

Fingernail-sized satellites depart on Endeavor's last run

(PhysOrg.com) -- A group of Cornell-developed, fingernail-sized satellites may travel to Saturn within the next decade, and as they flutter down through its atmosphere, they will collect data about chemistry, radiation and ...

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