Stranded dolphins exhibit bubbles, and ability to recover

Scientists know that the blood and tissues of some deceased beaked whales stranded near naval sonar exercises are riddled with bubbles. It is also well know that human divers can suffer from bubbles-induced decompression ...

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.

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