Approximately every two Earth years, when it is summer on the southern hemisphere of Mars, a window opens: Only in this season can water vapor efficiently rise from the lower into the upper Martian atmosphere. There, winds ...
Space Exploration
May 10, 2019
17
1785
A Wolf-Rayet star is a rare prelude to the famous final act of a massive star: the supernova. As one of its first observations in 2022, the NASA/ESA/CSA James Webb Space Telescope captured the Wolf-Rayet star WR 124 in unprecedented ...
Astronomy
Mar 14, 2023
0
1817
Mars represents something of a conundrum for scientists. In many respects, it is significantly different from Earth. It's cold, it's dry, there is little atmosphere or precipitation to speak of, and nothing grows there. ...
Space Exploration
Dec 15, 2015
1
8
NASA's Curiosity rover landed on Mars on Aug. 6, 2012, and since then has roamed Gale Crater taking samples and sending the results back home for researchers to interpret. Analysis of carbon isotopes in sediment samples taken ...
Planetary Sciences
Jan 17, 2022
8
793
Dust is a powerful thing. Not the stuff that we wipe off the coffee table on a regular basis, but the tiny particles floating around in the earth's atmosphere, which originate primarily from deserts in North Africa and the ...
Earth Sciences
Feb 19, 2010
0
0
Dust is a critical component in the Martian atmosphere. It influences the atmosphere's circulation by heating or cooling it and is in turn redistributed around the planet by atmospheric winds. In this dust cycle, dust storms ...
Space Exploration
Jun 17, 2019
0
23
A group of scientists led by researchers from the Universitat Autonoma de Barcelona (UAB) and the Swiss Federal Institute of Technology (ETH Zurich) has quantified dust and iron fluxes deposited in the Antarctic Ocean during ...
Earth Sciences
Sep 1, 2011
2
0
Extensive, explosive volcanic eruptions may disrupt a crucial aspect of the global nitrogen cycle, say researchers who have investigated ash deposits on the ocean floor.
Environment
Apr 7, 2014
0
1
Top soil is rich in nutrients and carbon but is increasingly being blown away by events such as the 'Red Dawn' in Sydney in 2009.
Environment
Aug 2, 2013
0
0
New research led by an Oregon State University scientist begins to unravel the role dust plays in nourishing global ocean ecosystems while helping regulate atmospheric carbon dioxide levels.
Earth Sciences
May 4, 2023
2
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