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5 December 2013 11:26 am ,
Vol. 342 ,
An animal rights group known as the Nonhuman Rights Project filed lawsuits in three New York courts this week in an...
Researchers have been hot on the trail of the elusive Denisovans, a type of ancient human known only by their DNA and...
Thousands of scientists in the Russian Academy of Sciences (RAS) are about to lose their jobs as a result of the...
Dyslexia, a learning disability that hinders reading, hasn't been associated with deficits in vision, hearing, or...
Exotic, elusive, and dangerous, snakes have fascinated humankind for millennia. They can be hard to find, yet their...
Researchers have sequenced and analyzed the first two snake genomes, which represent two evolutionary extremes. The...
Snake venoms are remarkably complex mixtures that can stun or kill prey within minutes. But more and more researchers...
At age 30, Dutch biologist Freek Vonk has built up a respectable career as a snake scientist. But in his home country,...
- 5 December 2013 11:26 am , Vol. 342 , #6163
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NASA Changes Moon Target
29 September 2009 4:01 pm
Just days after expressing “great confidence” that they had found the best possible target for next week’s planned crash into the moon, the Lunar Crater Observation and Sensing Satellite (LCROSS) mission team has retreated from its first choice. Yesterday, NASA quietly posted the targeting switch from crater Cabeus A to nearby Cabeus proper.
The goal of crashing LCROSS’s spent upper stage is to kick up any subsurface water ice into the view of the trailing LCROSS spacecraft. (The mission is only distantly connected to last week's much ballyhooed finding of molecular water on the lunar surface.) But continuing analysis of remote sensing from NASA’s Lunar Reconnaissance Orbiter was pointing to stronger signs of subsurface hydrogen—presumably in the form of water—in the permanent shadow inside Cabeus than in similarly cold shadow in Cabeus A, according to the NASA statement. At the same time, topographical observations from the orbiter and the Japanese orbiter Kaguya were showing that ground-based astronomers could after all glimpse impact ejecta through a gap in the high rim of Cabeus. Impact still will be as planned at 7:30 a.m. EDT on 9 October.