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Colliding Galaxies Create star Clusters.
July 19, 2001
Colliding Galaxies Create star Clusters
Astronauts Fix Leak on Station
ESA Tries to Save Stranded Satellite
COLLIDING Galaxies CREATE star CLUSTERS
New images from the Hubble Space Telescope show how two Galaxies sideswiping each other can create multiple star clusters - the birthplaces of new stars. This latest image of a group of Galaxies called the Stephan's Quintet, whose interactions are constantly creating these star clusters. Astronomers didn't know the age of the clusters, until they looked at them with Hubble, and found they were 2 million to 1 billion years old depending on how far they were from the collision areas.
ASTRONAUTS FIX LEAK ON STATION
Astronauts on board the International Space Station fixed a pressure leak between the station and its newly installed air lock on Thursday. To fix the leak, the astronauts had to borrow a spare latch from another part of the station that won't be needed for another 2 years - long enough for NASA to send up another replacement. The new air lock will get its trial run on Friday, when astronauts Michael Gernhardt and James Reilly go on their final spacewalk of the mission to complete the installation.
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ESA TRIES TO SAVE STRANDED SATELLITE
After last week's botched Ariane 5 launch, the European Space Agency is working to recover the Artemis satellite which was placed into a botched orbit. The $850 million satellite was supposed to be in a geosynchronous orbit above the equator, but now it will need to use most of its propellant to raise its own orbit the remaining amount. Engineers don't know how long the communications satellite will be able to maintain its orbit, but they don't believe it will last for more than a few years - far short of its 10 year expected lifetime.
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