How sustainable is nuclear power for the UK?

The research into the sustainability of nuclear and other electricity options in the UK shows that nuclear power could make a significant contribution to reducing greenhouse gas emissions by 2035. However, that would require ...

Endeavour astronauts wrap up third spacewalk

Two US astronauts wrapped up their third spacewalk outside the International Space Station on Wednesday after some doing maintenance work on the Russian side of the orbiting lab, NASA said.

NASA astronauts test new exercises on space walk

Two astronauts floated out of the International Space Station on Wednesday after trying out new exercises aimed at preventing decompression sickness while conserving oxygen, NASA said.

Astronauts to try spacewalk 'hokey pokey': NASA

US astronauts on Tuesday will try out a new set of exercises to prepare them for the change in pressure they encounter on their spacewalk outside the International Space Station, NASA said.

NASA begins countdown for Thursday launch try

(AP) -- After a four-month grounding of the space shuttle fleet, NASA's countdown clocks started ticking again Monday for Discovery's final ride into orbit.

Hawaii expands push to fuel hydrogen cars

Hawaii may be the first state in the nation to successfully build a fueling infrastructure that will support thousands of hydrogen fuel cell cars.

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