A reexamination of microfossils found in the Brazilian state of Mato Grosso do Sul shows that the marks previously interpreted as traces of worms or other small oceanic animals are […]
microfossil
Posted inAway Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extinction events, Fossils & Paleontology, Habitable Zones, Mapping, Geodesy, Cartography, Bathymetry, Origin & Evolution of Life, Press Release, Sample Return
Early Complex Earth Life Clung To Oxygenated Seafloors For Hundreds Of Millions Of Years
From the highest mountains to the deepest ocean, the driest desert to the lushest jungle, Earth displays a dazzling array of lifeforms. And eukaryotes account for many of these lifeforms, […]
Posted inBiogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Fossils & Paleontology, Imaging & Spectroscopy, Status Report
Tricks of Nature From the Ancient Earth and Early Mars: Chemical Gardens Generate Biomorphs With High Preservation Potential
Observations of morphology are commonly used to evaluate the biogenicity of terrestrial microfossils and could constitute a crucial line of evidence for extraterrestrial life‐detection missions in the future.
Posted inAnalog Studies, Astrochemistry, Away Teams & Field Reports, Biosignatures & Paleobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Fossils & Paleontology, Genomics, Proteomics, Bioinformatics, Habitable Zones, Microbiology & Virology, Sample Return, Status Report
Deep Microbial Colonization in 2-Billion-Year-Old Ultramafic Rock from the Bushveld Complex
Archean cratons may provide stable microbial habitats in the deep subsurface, as evidenced by the discovery of billion-year-old crustal fluids.
Posted inBiosignatures & Paleobiology, Fossils & Paleontology, Status Report
On The Nature Of The Earliest Known Lifeforms
Microfossils from the Paleoarchean Eon are the oldest known evidence of life. Despite their significance in understanding the history of life on Earth, any interpretation of the nature of these […]
Posted inAway Teams & Field Reports, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Fossils & Paleontology, Imaging & Spectroscopy, Press Release, Sample Return
Biosignatures: Detection Of A Biopolymer In 500 Million Year Old Trilobite Fossils
A UT San Antonio-led international research team has identified chitin, the primary organic component of modern crab shells and insect exoskeletons, in trilobite fossils more than 500 million years old, […]
Posted inAI - Data - Apps - Cybernetics, Away Teams & Field Reports, Biosignatures & Paleobiology, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Origin & Evolution of Life, Press Release, ROVs/Submersibles/Diving, Sample Return, Water/Hycean Worlds & Oceanography
A Break In A Longstanding Mystery About The Origin Of Complex Life
The most widely accepted scientific explanation for the arrival of all complex life on Earth has had an unsolved mystery at its heart. According to the theory, all plants, animals […]
Posted inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Fossils & Paleontology, Genomics, Proteomics, Bioinformatics, Habitable Zones, Impact events, Mapping, Geodesy, Cartography, Bathymetry, Nomenclature, Systematics, Natural History, Origin & Evolution of Life, Status Report
What The Earliest Evidence For Life Tells Us About The Early Evolution Of The Biosphere
Life emerged on Earth in an ultramafic world under anaerobic conditions and conditioned by particular environmental characteristics for which no record remains.
Posted inGenomics, Proteomics, Bioinformatics, Microbiology & Virology, Origin & Evolution of Life, People Of Astrobiology, Press Release
Resurrected Ancient Enzyme Offers New Window Into Early Earth And The Search For Life Beyond It
By resurrecting a 3.2-billion-year-old enzyme and studying it inside living microbes, researchers at the University of Wisconsin–Madison have created a new way to improve our understanding of the origins of […]
Posted inExtinction events, Fossils & Paleontology, Gaia - Planetary Perspectives, Impact events, Meteorites & Asteroids, Origin & Evolution of Life, Press Release
Evidence Of ‘lightning-fast’ Evolution Found After Dinosaur-killing Asteroid Impact
The asteroid that struck the Earth 66 million years ago devastated life across the planet, wiping out the dinosaurs and other organisms in a hail of fire and catastrophic climate […]