Tag Archive for 'Atmosphere'

This artist's conception shows W0855, the coldest known brown dwarf. Image credit: NASA / JPL-Caltech / Penn State University.

Water Ice Clouds Found in Atmosphere of Brown Dwarf Just 7.2 Light-Years Away

Sep 11, 2014 by News Staff

Astronomers led by Dr Jacqueline Faherty from Carnegie Institution of Washington and American Museum of Natural History have discovered evidence of water...

Scientists Discover Four New Ozone-Depleting Gases

Mar 10, 2014 by News Staff

European and Australian researchers have identified three new ozone-depleting chlorofluorocarbons, dubbed CFC-112, CFC-112a, CFC-113a, and one new ozone-depleting...

Barrow, Alaska. Image credit: Bob Johnston / CC BY 2.0.

Scientists Find High Levels of Atmospheric Molecular Chlorine in Alaska

Jan 14, 2014 by News Staff

A large multinational team of researchers has documented very high levels of molecular chlorine – as high as 400 parts per trillion – in the...

This is an artist's impression of the super-Earth exoplanet GJ 1214b. Image credit: NASA / ESA / G. Bacon, STScI / L. Kreidberg and J. Bean, University of Chicago / H. Knutson, California Institute of Technology.

GJ 1214b, GJ 436b: Astronomers Reveal Weather on Two Exoplanets

Jan 2, 2014 by News Staff

Scientists using NASA’s Hubble Space Telescope have characterized the atmospheres of two nearby exoplanets: the super-Earth GJ 1214b and the Neptune-sized...

Propylene: Ingredient of Household Plastic Detected in Atmosphere of Saturn’s Moon Titan

Oct 2, 2013 by News Staff

Planetary scientists using the Composite InfRared Spectrometer aboard NASA/ESA’s Cassini spacecraft have detected propylene in the lower atmosphere...

Some of the rocks that Dr Crowe and his colleagues studied in South Africa. Image credit: Nic Beukes.

Oxygen Appeared in Earth’s Atmosphere 3 Billion Years Ago

Sep 26, 2013 by Natali Anderson

An analysis of three-billion-year-old soils from South Africa shows that oxygen appeared in the atmosphere more than 600 million years earlier than previously...

This is an artist's concept of NASA's Mars Science Laboratory spacecraft approaching Mars. The Curiosity rover is safely tucked inside the spacecraft's aeroshell. Image credit: NASA / JPL-Caltech.

Curiosity Finds No Methane in Atmosphere of Mars

Sep 20, 2013 by News Staff

NASA scientists reported Thursday that the Mars rover Curiosity has not found any clear signs of methane, a gas that on our planet is a strong indicator...

This artist's impression shows how Gliese 1214b may look as it transits its parent star. Image credit: NAOJ.

Super-Earth Gliese 1214b Has Water-Rich Atmosphere, Japanese Astronomers Say

Sep 5, 2013 by Enrico de Lazaro

Astronomers from Japan using NAOJ’s Subaru Telescope have found that the extrasolar planet Gliese 1214b has a water-rich atmosphere. This artist’s...

Water-carved valley on Mars. The researchers have found that some of these valleys appear to have been formed by orographic precipitation - rain or snow that falls when moist air is pushed upward by mountain ridges or raised crater rims. The findings suggest that at least some of the water on ancient Mars fell from the atmosphere, rather than bubbling up from the subsurface (NASA)

Water-Carved Valleys Point to Ancient Snowfalls on Mars

Jul 24, 2013 by News Staff

According to a new study published online in the Geophysical Research Letters, some water-carved Martian valleys appear to have been caused by runoff from...

No Rain on Nearby Exoplanet

Jul 11, 2012 by Sergio Prostak

An international team of astrophysicists using NASA’s Hubble Space Telescope has detected meteorological variations in the atmosphere of the exoplanet...

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