(PhysOrg.com) -- NASA's Mars Reconnaissance Orbiter has discovered the total amount of atmosphere on Mars changes dramatically as the tilt of the planet's axis varies. This process can affect the stability of liquid water, ...
Space Exploration
Apr 21, 2011
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Mysterious dark sand dunes around Mars' northern polar cap are shifting with the seasons, as carbon dioxide gas changes form and sparks landscape-altering avalanches, said a study published Thursday.
Space Exploration
Feb 3, 2011
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One of the biggest comet findings coming out of the amazing images and data taken by the University of Maryland-led EPOXI mission as it zipped past comet Hartley 2 last week is that dry ice is the 'jet' fuel for this comet ...
Space Exploration
Nov 10, 2010
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Iron dust, the gold of the oceans and rarest nutrient for most marine life, can be washed down by rivers or blown out to sea or - a surprising new study finds - float up from the sea floor. The discovery, published online ...
Earth Sciences
Feb 8, 2009
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When natural gas leaks from a subsurface pipeline, a ground cover of water/snow saturation, asphalt paving or a combination of these can cause the gas to migrate away from the leak site up to three to four times farther than ...
Earth Sciences
1 hour ago
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A study conducted by researchers at the University of São Paulo (USP) in Brazil and reported in an article published in Nature Communications shows that the Cerrado, Brazil's savanna biome, is experiencing the worst drought ...
Earth Sciences
May 23, 2024
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The transition from the African humid period (AHP) to dry conditions in North Africa is the clearest example of climate tipping points in recent geological history. They occur when small perturbations trigger a large, non-linear ...
Earth Sciences
May 7, 2024
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Cancer-causing flame retardants found in everyday things like plastics, furniture, fabrics and electronics can be sucked up by the skin and absorbed into the bloodstream in 24 hours, scientists have found.
Environment
Apr 18, 2024
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James Cook University researchers have discovered Indigenous fire management in northern Australia was being practiced at least 11,000 years ago—and it has implications for fire management practices today.
Ecology
Mar 12, 2024
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Bacteriophages—viruses that infect bacteria—are common in soil ecosystems. However, many of these phages have not been identified, and the bacteria they target are also a mystery.
Ecology
Feb 13, 2024
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