09/09/2010

Scientists identify key enzyme in microbial immune system

Imagine a war in which you are vastly outnumbered by an enemy that is utterly relentless - attacking you is all it does. The intro to another Terminator movie? No, just another day for microbes such as bacteria and archaea, ...

Simulating the formation-flying future of space

(PhysOrg.com) -- All space missions are difficult. Docking a pair of spacecraft is tough but flying multiple satellites together in formation is the real cutting edge.

Separating the Catalysts from the Chaff

When studying how specific catalysts drive reactions, scientists are often frustrated by the actions of unrelated molecules in the samples. Now, thanks to a device created by a team at Pacific Northwest National Laboratory, ...

Oil dispersants' effects still largely a mystery

In the wake of the BP oil spill, gaping questions remain about a key tool used during cleanup: the nearly 2 million gallons of chemical dispersants sprayed over the water or onto the gushing wellhead on the seafloor. Do the ...

Supernova shrapnel found in meteorite

(PhysOrg.com) -- Scientists have identified the microscopic shrapnel of a nearby star that exploded just before or during the birth of the solar system 4.5 billion years ago.

How can we use neutrinos to probe dark matter in the Sun?

The existence of Dark Matter particles in the Sun's interior seems inevitable, despite dark matter never having been observed (there or elsewhere), despite intensive ongoing searches. Once gravitationally captured by the ...

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