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SPACE & SCIENCE NEWS: October 2011
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Tevatron
Fermilab faces life after the Tevatron
(Oct 3, 2011)


Like an old and celebrated race track, the giant particle accelerator known as the Tevatron came down to its final laps on Friday. Shortly after 2 p.m. on 30 September, with reporters watching by video link from a nearby auditorium, an operator at the Fermi National Accelerator Laboratory (Fermilab) in Batavia, Illinois, diverted the final bunches of protons and antiprotons speeding around the Tevatron's 6.3-kilometer ring.

Read more. Source: Nature

In this image of Vesta, taken by NASA's Dawn spacecraft just shortly before the beginning of high altitude mapping orbit, north is up and the upper right corner is to the northeast. Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA
Dawn begins new Vesta mapping orbit
(Oct 2, 2011)


NASA's Dawn spacecraft has completed a gentle spiral into its new science orbit for an even closer view of the giant asteroid Vesta. Dawn began sending science data on Sept. 29 from this new orbit, known as the high altitude mapping orbit (HAMO).

Read more. Source: NASA/JPL

NEA distribution, old and new models
NASA space telescope finds fewer asteroids near Earth
(Oct 1, 2011)


New observations by NASA's Wide-field Infrared Survey Explorer, or WISE, show there are significantly fewer near-Earth asteroids in the mid-size range than previously thought. The findings also indicate NASA has found more than 90 percent of the largest near-Earth asteroids, meeting a goal agreed to with Congress in 1998.

Read more. Source: NASA/JPL

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