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17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
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ScienceShot: Mars Phoenix Lander Frozen Solid
24 May 2010 5:17 pm
One of NASA's three probes on the red planet has cashed in. Two years ago tomorrow, the Phoenix Mars Lander plopped down near the north pole, and for 5 months it transmitted data indicating the onetime presence of water beneath the frozen surface. Then the long and dark Martian winter interrupted communications. When spring returned last year, NASA mission controllers attempted to reestablish contact with the solar-powered probe, but 211 tries failed to detect a signal. Now, images taken by the Mars Reconnaissance Orbiter tell the tale. Not only is the lander buried by hundreds of kilograms of frozen carbon dioxide, but most likely, scientists reported today, the weight of the ice has broken off the solar panels, rendering Phoenix a relic—and maybe a candidate for display in a Martian museum by residents in some future, distant year.
See more ScienceShots.