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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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Live Chat: The Latest Mars Rover Finds
1 October 2013 12:45 pm
[Please hit refresh on this page if the video is not playing and it is after 3 p.m. EDT. Otherwise we will start shortly. You can leave your questions for the guest in the comment section below.]
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.