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Supernova progenitor found?

New research, led by Stella Kafka of the Carnegie Institution for Science in the United States, identifies a star system, prior to explosion, which will possibly become a type Ia supernova.

Aug 3rd, 2012

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Thin current sheets in space: where the action is

Around Earth, the processes accelerating electrons which hit the atmosphere and cause beautiful auroras are often initiated in thin current sheets. Similar processes, auroras and thin current sheets are found around other planets such as Jupiter and Saturn.

Aug 1st, 2012

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Taking the heat: Aeroshell to protect NASA's Mars Science Laboratory on descent through Martian atmosphere

After a journey of 245 days across 352 million miles, the moment of truth for the Mars Science Laboratory begins late in the evening of August 5 when the spacecraft roars into the Martian atmosphere, traveling at 13,200 miles an hour. The final seven minutes will determine the fate of the mission, and a perfect performance of the Lockheed Martin Space Systems aeroshell is absolutely vital to getting the Mars Curiosity Rover safely down on the sands of Mars.

Jul 26th, 2012

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A far-off solar system

Researchers measure the orientation of a multiplanet system and find it very similar to our own solar system.

Jul 26th, 2012

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A black hole's dinner (w/video)

A giant gas cloud is on collision course with the black hole in the centre of our galaxy in 2013. This is a unique opportunity to observe how a super massive black hole sucks in material, in real time.

Jul 25th, 2012

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Two Solar System puzzles solved

Comets and asteroids preserve the building blocks of our Solar System and should help explain its origin. But there are unsolved puzzles. For example, how did icy comets obtain particles that formed at high temperatures, and how did these refractory particles acquire rims with different compositions? Carnegie's theoretical astrophysicist Alan Boss and cosmochemist Conel Alexander are the first to model the trajectories of such particles in the unstable disk of gas and dust that formed the Solar System.

Jul 25th, 2012

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Satellites see unprecedented Greenland ice sheet surface melt

For several days this month, Greenland's surface ice cover melted over a larger area than at any time in more than 30 years of satellite observations. Nearly the entire ice cover of Greenland, from its thin, low-lying coastal edges to its 2-mile-thick center, experienced some degree of melting at its surface, according to measurements from three independent satellites analyzed by NASA and university scientists.

Jul 24th, 2012

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New clues to the early Solar System from ancient meteorites

In order to understand Earth's earliest history--its formation from Solar System material into the present-day layering of metal core and mantle, and crust--scientists look to meteorites. New research from a team including Carnegie's Doug Rumble and Liping Qin focuses on one particularly old type of meteorite called diogenites.

Jul 23rd, 2012

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