Curiosity rover finds clues to changes in Mars' atmosphere
(Phys.org)—NASA's car-sized rover, Curiosity, has taken significant steps toward understanding how Mars may have lost much of its original atmosphere.
Remaining Martian atmosphere still dynamic
(Phys.org) —Mars has lost much of its original atmosphere, but what's left remains quite active, recent findings from NASA's Mars rover Curiosity indicate. Rover team members reported diverse findings today ...
Atomic weights of 10 elements on periodic table about to make an historic change
For the first time in history, a change will be made to the atomic weights of some elements listed on the Periodic table of the chemical elements posted on walls of chemistry classrooms and on the inside covers ...
Scientists meet to discuss usefulness of GMT
Leading scientists from around the world are meeting in Britain from Thursday to consider a proposal that could eventually see Greenwich Mean Time relegated to a footnote in history.
Origins of sulfur in rocks tells early oxygen story
(PhysOrg.com) -- Sedimentary rocks created more than 2.4 billion years ago sometimes have an unusual sulfur isotope composition thought to be caused by the action of ultra violet light on volcanically produced ...
'Si' on the new SI: NIST backs proposal for a revamped system of measurement units
Taking the first steps of what would be a major historical advance in the science of measurement, the National Institute of Standards and Technology is participating in a worldwide effort to recommend major ...
Scientists first to mimic nature's vital potassium ion channel
(Phys.org) -- An international team of scientists, including chemist Xiao Cheng Zeng of the University of Nebraska-Lincoln, has created what is in effect a nanoscale sieve that is very selective in what it ...
Scientists reveal identity of mystery marine pollutant
Scientists at Plymouth University appear to have identified the 'mystery' waxy oil-like substance which has been polluting seabirds along the south coast of the UK.
Researchers Study Cave's 'Breathing' for Better Climate Clues
(PhysOrg.com) -- A University of Arkansas researcher studying the way caves "breathe" is providing new insights into the process by which scientists study paleoclimates.