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17 April 2014 12:48 pm ,
Vol. 344 ,
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...
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,...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
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Live Chat: The Latest Mars Rover Finds
1 October 2013 12:45 pm
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The Mars Science Laboratory rover, Curiosity, has made some exciting discoveries since it arrived on the surface of the Red Planet in August last year. In the first 100 martian days after landing, Curiosity investigated a loose rock, named Jake_M, sitting on the plains of Gale crater, and an accumulation of windblown sand, silt, and dust known as Rocknest. Jake_M is unlike any other martian rock we knew about and is similar to uncommon terrestrial rocks found on ocean islands and in rift zones. Its composition provides clues to the nature of the martian mantle. Rocknest contains water bound to amorphous materials and several simple organic compounds. Chemical analysis of this deposit indicates that basaltic martian soils may be locally sourced yet globally similar in composition. Five articles presented in the 27 September edition of Science describe the results from these initial investigations.
Join Curiosity’s project scientist, John Grotzinger, and the principal investigator of the Chemistry & Mineralogy X-Ray Diffraction instrument, David Blake, on Thursday, 3 October, at 3 p.m. EDT on this page for a live chat about the rover’s latest finds.