A decline in the element molybdenum across our planet’s oceans preceded a significant extinction event approximately 183 million years ago, new research from Florida State University shows.
Astrogeology
Posted inAstrogeology, Atmospheres, Climate, Weather, Habitable Zones, Press Release, Venus
Massive Volcanism May Have Altered Ancient Venus’ Climate
Volcanic activity lasting hundreds to thousands of centuries and erupting massive amounts of material may have helped transform Venus from a temperate and wet world to the acidic hothouse it […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Missions & Hardware, Press Release, Tricorders & Sensors, Venus
Tricorder Tech: Venus Life Finder Habitability Mission: Motivation, Science Objectives, And Instrumentation
For over half a century, scientists have contemplated the potential existence of life within the clouds of Venus. Unknown chemistry leaves open the possibility that certain regions of the Venusian […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
Early Release Science Of The Exoplanet WASP-39b With JWST NIRSpec PRISM
Transmission spectroscopy of exoplanets has revealed signatures of water vapor, aerosols, and alkali metals in a few dozen exoplanet atmospheres.
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
Early Release Science Of The Exoplanet WASP-39b With JWST NIRSpec G395H
Measuring the abundances of carbon and oxygen in exoplanet atmospheres is considered a crucial avenue for unlocking the formation and evolution of exoplanetary systems.
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
Early Release Science Of The Exoplanet WASP-39b With JWST NIRCam
Measuring the metallicity and carbon-to-oxygen (C/O) ratio in exoplanet atmospheres is a fundamental step towards constraining the dominant chemical processes at work and, if in equilibrium, revealing planet formation histories.
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Press Release
Rocky Histories: The Effect Of High Excitations On The Formation Of Rocky Planets
Rocky planets both in and outside of our solar system are observed to have a range of core-mass fractions (CMFs).
Posted inAstrogeology, Biosignatures & Paleobiology, Mars, Missions & Hardware, Press Release, ROVs/Submersibles/Diving
Perseverance Investigates Fine-grained Sedimentary Rock On Mars For Biosignatures
Exploring a sediment-rich location in this Mars delta offers tantalizing opportunities for the six-wheeler’s science team.
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Press Release, Tricorders & Sensors, Water/Hycean Worlds & Oceanography
Tricorder Tech: The Tiniest Ever Ancient Seawater Pockets Ever Revealed
Trapped for millennia, the tiniest liquid remnants of an ancient inland sea have now been revealed.
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Mars, Meteorites & Asteroids, Press Release, Water/Hycean Worlds & Oceanography
Mars Was Covered By 300 Meter Deep Oceans
Mars is called the red planet. But once, it was actually blue and covered in water, bringing us closer to finding out if Mars had ever harboured life.