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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: Versailles, Saturn Style
23 February 2010 5:11 pm
In its latest flyby of Enceladus, the Cassini spacecraft has captured a veritable array of fountains spraying ice crystals and water above the moon's southern pole—a phenomenon unique in the solar system. Tidal forces created by gravity from the giant ringed planet and its other moons open fissures called "tiger stripes" in the deeply frozen surface of Enceladus. The gravity also warps the moon's ice and creates enough heat to force the ice and water out of the fissures and into space. This image, taken 21 November, will be the last of the geysers for a long time. Soon that region will be shaded from the sun for 15 years, hiding the fountains from Cassini's cameras.