Universite Cadi Ayyad, Ibn Battuta Centre, Marrakech, Morocco Joint ESA/NASA Workshop and Field TripFebruary 7-9, 2011 ABSTRACT DEADLINE JANUARY 7th Conveners: Charles Cockell (Open University, UK), Oliver Angerer (ESA), Mary […]
Biogeochemical Cycles & Geobiology
Posted inAstrobiology (general), Biogeochemical Cycles & Geobiology, Extremeophiles and Extreme Environments
Weird Arsenic-Eating Microbes Discovered? Yes. Finding E.T.? No.
NASA-Funded Astrobiology Research Discovers Earth Life Built With Arsenic, NASA “NASA-funded astrobiology research has changed the fundamental knowledge about what comprises all known life on Earth. Researchers conducting tests in […]
Posted inAstrobiology (general), Biogeochemical Cycles & Geobiology, Extremeophiles and Extreme Environments
Arsenic-Based Life Found on Earth
Astrobiologists: Deadly arsenic breathes life into organisms, Arizona State University “Evidence that the toxic element arsenic can replace the essential nutrient phosphorus in biomolecules of a naturally occurring bacterium expands […]
Posted inAstrobiology (general), Biogeochemical Cycles & Geobiology, Origin & Evolution of Life
"Life As We Know It", Redefined
Keith’s note: Multiple, reliable sources within the Astrobiology community tell me that NASA’s Astrobiology announcement tomorrow concerns Arsenic-based biochemistry and the implications for the origin of life on Earth, how […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Habitable Zones, Press Release, Water/Hycean Worlds & Oceanography
Plants Kick-start Evolutionary Drama Of Earth’s Oxygenation
An international team of scientists, exploiting pioneering techniques at Arizona State University, has taken a significant step toward unlocking the secrets of oxygenation of the Earth’s oceans and atmosphere.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Press Release
Did Phosphorous Trigger Blue Skies?
The evolution of complex life forms may have gotten a jump start billions of years ago, when geologic events operating over millions of years caused large quantities of phosphorus to […]
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Cryobiology, Dale Andersen's Field Reports, Exploration Gear & Tech, Icy Worlds, Polar / Alpine Expeditions, Status Report
McGill High Arctic Research Station (MARS) Photo Report: 3 April 2009
Dale Andersen: Wayne Pollard and I just returned from a 30 km run (by skidoo) out to the mouth of Expedition Fiord where we have one in a series of […]
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Atmospheres, Climate, Weather, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Cryobiology, Dale Andersen's Field Reports, Exploration Gear & Tech, Icy Worlds, Imaging & Spectroscopy, Microbiology & Virology, Status Report, Tricorders & Sensors
In Situ Measurements of Atmospheric Methane at Lake Untersee, Antarctica
Methane (CH4) is an important greenhouse gas in the Earth’s atmosphere, accounting for approximately 20% of the observed greenhouse effect. With an atmospheric lifetime of about ten years, methane levels […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Cryobiology, Fossils & Paleontology, Habitable Zones, Icy Worlds, Mars, Meteorites & Asteroids, Press Release
Mars Has Been in the Deep Freeze for the Past Four Billion Years, Study Shows
The current mean temperature on the equator of Mars is a blustery 69 degrees below zero Fahrenheit. Scientists have long thought that the Red Planet was once temperate enough for […]
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Cryobiology, Exploration Gear & Tech, Fossils & Paleontology, Icy Worlds, Imaging & Spectroscopy, Microbiology & Virology, Polar / Alpine Expeditions, Press Release, Tricorders & Sensors
Kevin Hand’s Antarctic Journal 1 March 2005
Ok, well, this is it folks, one last email and then I’m on a plane back to LA. I’ve been in New Zealand for a bit and I’ve finally had […]