Life most likely started during the Hadean Eon; however, the environmental conditions which contributed to the complexity of its chemistry are poorly known.
Biogeochemical Cycles & Geobiology
JWST Molecular Mapping And Characterization Of Enceladus’ Water Plume Feeding Its Torus
Enceladus is a prime target in the search for life in our solar system, having an active plume likely connected to a large liquid water subsurface ocean.
Webb Space Telescope Maps Surprisingly Large Plume Jetting From Saturn’s Moon Enceladus
A water vapour plume from Saturn’s moon Enceladus spanning more than 9600 kilometres — long enough to stretch across the Eurasian continent from Ireland to Japan — has been detected […]
Iron-rich Rocks Unlock New Insights Into Earth’s Planetary History
Visually striking layers of burnt orange, yellow, silver, brown and blue-tinged black are characteristic of banded iron formations, sedimentary rocks that may have prompted some of the largest volcanic eruptions […]
Meteoritic And Volcanic Particles May Have Promoted Origin Of Life Reactions
Precursors of the molecules needed for the origin of life may have been generated by chemical reactions promoted by iron-rich particles from meteors or volcanic eruptions on Earth approximately 4.4 […]
How Geobiological Feedback Makes Some Yellowstone Hydrothermal Pools Acidic
Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week’s contribution is from Ken Sims, Professor of Geology and Geophysics, and […]
Isotopic Constraints On Lightning As A Source Of Fixed Nitrogen In Earth’s Early Biosphere
Bioavailable nitrogen is thought to be a requirement for the origin and sustenance of life. Before the onset of biological nitrogen fixation, abiotic pathways to fix atmospheric N2 must have […]
Elation Through Filtration: An Oceanographer’s Sensations at Sea Aboard R/V Sally Ride
By Dante Capone, Ph.D. student at the Scripps Institution of Oceanography Aboard R/V Sally Ride
Driving Action On The Climate Crisis Through Astronomers For Planet Earth And Beyond
While an astronomer’s job is typically to look out from Earth, the seriousness of the climate crisis has meant a shift in many astronomers’ focus.
A Potentially Volcano-Covered Earth-Size World Discovered
Astronomers have discovered an Earth-size exoplanet, or world beyond our solar system, that may be carpeted with volcanoes. Called LP 791-18 d, the planet could undergo volcanic outbursts as often […]
