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Space Exploration News

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astrophysics, cosmology, the universe...

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Colossal hot cloud envelopes colliding galaxies

Scientists have used Chandra to make a detailed study of an enormous cloud of hot gas enveloping two large, colliding galaxies. This unusually large reservoir of gas contains as much mass as 10 billion Suns, spans about 300,000 light years, and radiates at a temperature of more than 7 million degrees.

Posted: Apr 30th, 2013

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Saturn's youthful appearance explained

As planets age they become darker and cooler. Saturn however is much brighter than expected for a planet of its age - a question that has puzzled scientists since the late 1960s. New research has revealed how Saturn keeps itself looking young and hot.

Posted: Apr 30th, 2013

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VLA gives deep, detailed image of distant universe

Staring at a small patch of sky for more than 50 hours with the ultra-sensitive Karl G. Jansky Very Large Array (VLA), astronomers have for the first time identified discrete sources that account for nearly all the radio waves coming from distant galaxies.

Posted: Apr 30th, 2013

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Twinkle, twinkle little star! New app measures sky brightness

Researchers from the German 'Loss of the Night' project have developed an app for Android smart phones, which counts the number of visible stars in the sky. The data from the app will be used by scientists to understand light pollution on a world wide scale.

Posted: Apr 29th, 2013

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Small meteors punch through Saturn's rings

Scientists have been searching for years to find proof of small meteors that they believe have been smashing into Saturn's rings. Cornell researchers and their colleagues announced today that they now have evidence of these collisions, thanks to images of Saturn's rings taken by NASA's Cassini spacecraft.

Posted: Apr 25th, 2013

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Entire galaxies feel the heat from newborn stars

When galaxies form new stars, they sometimes do so in frantic episodes of activity known as starbursts. During these bursts, hundreds of millions of stars are born, and their combined effect can drive a powerful wind that travels out of the galaxy. These winds were known to affect their host galaxy - but this new research now shows that they have a significantly greater effect than previously thought.

Posted: Apr 25th, 2013

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Looking for life by the light of dying stars

Because it has no source of energy, a dead star - known as a white dwarf - will eventually cool down and fade away. But circumstantial evidence suggests that white dwarfs can still support habitable planets.

Posted: Apr 25th, 2013

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Rare galaxy found furiously burning fuel for stars

Astronomers have found a galaxy turning gas into stars with almost 100 percent efficiency, a rare phase of galaxy evolution that is the most extreme yet observed. The findings come from the IRAM Plateau de Bure interferometer in the French Alps, NASA's Wide-field Infrared Survey Explorer and NASA's Hubble Space Telescope.

Posted: Apr 23rd, 2013

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Hubble captures comet ISON

Hubble photographed a jet blasting dust particles off the sunward-facing side of the comet's nucleus. Preliminary measurements suggest that ISON's nucleus is no larger than three or four miles across.

Posted: Apr 23rd, 2013

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Space scientists find way to monitor elusive collisions in space

Many collisions occur between asteroids and other objects in our solar system, but scientists are not always able to detect or track these impacts from Earth. The 'rogue debris' created by such collisions can sometimes catch us by surprise. UCLA space scientists have now devised a way to monitor these types of collisions in interplanetary space by using a new method to determine the mass of magnetic clouds that result from the impacts.

Posted: Apr 23rd, 2013

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