NASA still struggling with stuck valve in space (Update)

(AP) -- Flight controllers struggled Wednesday to open a stuck valve in a cooling loop at the International Space Station, as the 13 orbiting astronauts enjoyed a little time off after an intense week of hauling supplies ...

Astronauts take 3rd, final spacewalk; valve stuck

(AP) -- A pair of spacewalking astronauts finished installing a fresh storage tank outside the International Space Station on Tuesday, but a stuck valve was threatening to jeopardize half of the cooling system.

Study: Sea stars bulk up to beat the heat

A new study finds that a species of sea star stays cool using a strategy never before seen in the animal kingdom. The sea stars soak up cold sea water into their bodies during high tide as buffer against potentially damaging ...

Optical atomic clock becomes portable

You imagine a clock to be different -- yet the optical table with its many complicated set-ups really is one. Optical clocks like the strontium clock in the Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig could ...

Mystery Source of Solar Wind Heating Identified

(PhysOrg.com) -- The solar wind is hotter than it should be, and for decades researchers have puzzled over the unknown source of energy that heats it. In a paper published in the June 12 issue of Physical Review Letters, ...

Quantum goes massive

(PhysOrg.com) -- An astrophysics experiment in America has demonstrated how fundamental research in one subject area can have a profound effect on work in another as the instruments used for the Laser Interferometer Gravitational-Wave ...

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