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6 March 2014 1:04 pm ,
Vol. 343 ,
Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
- 6 March 2014 1:04 pm , Vol. 343 , #6175
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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.