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The early Universe was a violent chaotic time.


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Universe with Galaxies.
The early Universe was a violent chaotic time, with Galaxies smashing into each other.

Early Universe Might Not Have Been So Violent.

You always hear that the early universe was a violent chaotic time, with Galaxies smashing into each other. Maybe it wasn't quite that crazy early on. Alister Graham from the Australian National University has analyzed images taken by the Hubble Space Telescope, and found that there were 1/10th the collisions that earlier studies had suggested. It was thought that it took multiple collisions for Galaxies to clear away the stars at their cores - this is how Astronomers built up the earlier model - but Dr. Graham calculated that it could actually happen with just one collision.

International Space Station Oxygen Generator Working Again.

The crew of the International Space Station have successfully repaired a malfunctioning oxygen system that broke nearly two weeks ago. Commander Gennady Padalka and Science Officer Mike Fincke replaced the Russian-built Elektron system's liquids unit with a part rebuilt from scavenged components. They also got some incredible views of Hurricane Ivan as it swept underneath the station on its way to ravage the US' Gulf Coast.

Genesis Recovery is Going Well.

After its crash landing, NASA scientists weren't too hopeful that they'd turn up much science in the wreckage of Genesis' sample capsule, but the results so far have been a pleasant surprise. Even though the capsule smashed into the ground at nearly 320 km (200 miles) per hour, the samples aren't smashed up too badly, and scientists are able to extract fairly large pieces for further analysis. Genesis' purpose was to gather particles from the Sun's solar wind, which would be returned to Earth and then distributed to scientists around the world.

Saturn's Translucent Rings.

Saturn's ring shadows appear wrapped in a harmonious symphony with the planet in this color view from the Cassini spacecraft.

Saturn and its rings would nearly fill the space between Earth and the Moon. Yet, despite their great breadth, the rings are a few meters thick and, in some places, very translucent. This image shows a view through the C ring, which is closest to Saturn, and through the Cassini division, the 4,800-kilometer-wide gap (2,980-miles) that arcs across the top of the image and separates the optically thick B ring from the A ring. The part of the atmosphere seen through the gap appears darker and more bluish due to scattering at blue wavelengths by the cloud-free upper atmosphere.

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