The biogeochemical sulfur cycle plays a central role in fueling microbial metabolisms, regulating the redox state of the Earth, and impacting climate through remineralization of organic carbon.
Biogeochemical Cycles & Geobiology
Posted inBiogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Imaging & Spectroscopy, Mars, Press Release
Perseverance Rover Conducts Astrobiology And Geology Exploration On Mars
NASA’s Perseverance rover is well into its second science campaign, collecting rock-core samples from features within an area long considered by scientists to be a top prospect for finding signs […]
Posted inBiogeochemical Cycles & Geobiology, Fossils & Paleontology, Origin & Evolution of Life, Plant Biology, Press Release, Terraforming & Geoengineering
Land Plants Changed Earth’s Composition
Scientists at the University of Southampton have discovered that the evolution of land plants caused a sudden shift in the composition of Earth’s continents. The Southampton researchers, led by Dr […]
Posted inBiogeochemical Cycles & Geobiology, Extinction events, Impact events, Press Release
Study Finds Evidence That Giant Meteorite Impacts Created The Continents
New Curtin research has provided the strongest evidence yet that Earth’s continents were formed by giant meteorite impacts that were particularly prevalent during the first billion years or so of […]
Posted inBiogeochemical Cycles & Geobiology
Life In Earth's Interior Is As Productive As In Some Ocean Waters
Terrestrial and marine habitats have been considered the ecosystems with the highest primary production on earth by far, i.e., the conversion of inorganic to organic carbon. Microscopic algae in the […]
Posted inBiochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Mars, Missions & Hardware, Press Release, Robotics/Rovers/UAVs, Tricorders & Sensors
Curiosity Takes Inventory of Key Life Ingredient on Mars
Scientists using data from NASA’s Curiosity rover measured the total organic carbon – a key component in the molecules of life – in Martian rocks for the first time.
Posted inBiogeochemical Cycles & Geobiology
New Insights Into The Interaction Of Ocean, Continent And Atmosphere 2.7 Billion Years Ago
What did the Earth look like 2.7 billion years ago and what were the differences compared to today? What was the chemical composition of the oceans and atmosphere? When did […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Neptune
Can Carbon Fractionation Provide Evidence for Aerial Biospheres in the Atmospheres of Temperate Sub-Neptunes?
The search for signs of life on other worlds has largely focused on terrestrial planets. Recent work, however, argues that life could exist in the atmospheres of temperate sub-Neptunes. Here, […]
Posted inBiogeochemical Cycles & Geobiology, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Press Release, Water/Hycean Worlds & Oceanography
Ocean Water Samples Yield Treasure Trove Of RNA Virus Data
Ocean water samples collected around the world have yielded a treasure trove of new data about RNA viruses, expanding ecological research possibilities and reshaping our understanding of how these small […]
Posted inBiogeochemical Cycles & Geobiology
Ultrahigh-Pressure Magnesium Hydrosilicates As Reservoirs Of Water In The Early Earth
The origin of water on the Earth is a long-standing mystery, requiring a comprehensive search for hydrous compounds, stable at conditions of the deep Earth and made of Earth-abundant elements. […]