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27 November 2013 12:59 pm ,
Vol. 342 ,
The new head of the National Center for Science Education promises to "fight the good fight" against attacks on...
Analyses of the H7N9 strains isolated from four new cases show that the virus is evolving rapidly, heightening anxiety...
In 2009, Jack Szostak shared a Nobel Prize for his part in discovering the role of telomeres, the end bits of...
Science has exposed a thriving academic black market in China involving shady agencies, corrupt scientists, and...
Paper-selling agencies flourish in the aura of reputable businesses. For some scientists, it may be difficult to tell...
Data collected by satellites and floating probes have chronicled a 2-decade rise in the temperature and thickness of a...
Cholesterol, the artery-clogging molecule that contributes to cardiovascular disease, has another nasty trick up its...
Until recently, the Defense Advanced Research Projects Agency (DARPA) kept its plans for its $70 million portion of the...
- 27 November 2013 12:59 pm , Vol. 342 , #6162
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ScienceShot: Jupiter Impact Left No Mark
16 June 2010 1:58 pm
When amateur astronomers spotted a brief white blaze near Jupiter's midsection on 3 June, scientists thought the planet had been hit by a large asteroid or comet. But when they began looking for the telltale dark cloud of debris, they didn't find it. That means, Hubble Space Telescope scientists announced today, that the object that struck Jupiter 2 weeks ago must have been a much smaller asteroid or comet than the impactor that scarred the planet in 2009—and the string of cometary fragments that left multiple pockmarks in Jupiter's cloud tops in 1994. Indeed, the object was so small that it vaporized completely in Jupiter's atmosphere, instead of surviving long enough to blast out a cloud-forming plume of dust and debris.