Hot rocky super-Earths are thought to be sufficiently irradiated by their host star to melt their surface and thus allow for long-lasting magma oceans.
geology
Posted inAstrogeology, Europa, Icy Worlds, Impact events, Status Report
Thin Ice Lithospheres and High Heat Flows on Europa From Large Impact Structure Ring-graben
Craters are probes of planetary surface and interior properties. Here we measure depths, widths, and spacing of circumferential ring-graben surrounding the two largest multiring impact structures on Europa, Tyre and […]
Posted inAtmospheres, Climate, Weather, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Fossils & Paleontology, Press Release
Deep Dust Project Works To Unravel Earth’s Distant Climate Past In Oklahoma’s Anadarko Basin
A team of researchers at the University of Oklahoma will explore the Permian sediment of Oklahoma’s Anadarko Basin, which contains dust deposits from Earth’s deep-time past. The Anadarko Basin includes […]
Posted inAstrogeology, Away Teams & Field Reports, Exploration Gear & Tech, Imaging & Spectroscopy, Status Report, Tricorders & Sensors
ESA Away Team Training: Geological Sample Collection
NASA astronaut candidate Jessica Wittner (NASA), astronauts Thomas Pesquet (ESA) and Takuya Onishi (JAXA) documenting the collection of geological samples during a field traverse of the ESA PANGAEA course.
Posted inAstronauts and Explorers, Away Teams & Field Reports, Exploration Gear & Tech, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Status Report, Tricorders & Sensors
ESA PANGAEA Away Team Trainees Use Tricorders To Investigate A Rock Outcrop
ESA PANGAEA 2022-2023 course trainees investigate the mineral content in a rock outcrop, using the spectrometer associated with the Electronic FieldBook.
Posted inAstrogeology, Astronauts and Explorers, Away Teams & Field Reports, Biosignatures & Paleobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Exploration Gear & Tech, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Status Report, Tricorders & Sensors
Astronauts Use Tricorders And Geology Tools During ESA Away Team Training
While NASA astronaut Stephanie Wilson has created a small trench to analyze with a portable spectrometer some levels of now-buried rock deposits, ESA astronaut Alexander Gerst looks for more clues […]
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Fossils & Paleontology, Habitable Zones, Press Release
Plate Tectonics In The Archean: Observation Versus Interpretation
The plate tectonics theory established in the 20th century has been successful in interpreting many geological phenomena, processes and events that have occurred in the Phanerozoic. However, the theory has […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Missions & Hardware, Press Release, Space Stations, Water/Hycean Worlds & Oceanography
Planetary Survey From Orbit: Earth’s Surface Minerals In Arid Regions
Editor’s note: We’re now able to detect planets orbiting other stars. We can determine the size and basic composition of these worlds but only in a general sense. As newer […]
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Imaging & Spectroscopy, Mars, Status Report
Mixtures Of Sulfates In Melas Chasma On Mars
Many locations on Mars have sulfates, which are sedimentary rocks formed in water. Within Valles Marineris, the large canyon system that cuts across the planet, there are big and thick […]
Posted inAstrogeology, Mars, Robotics/Rovers/UAVs, Status Report
Video: Water Enters Jezero Crater Billions of Years Ago (Artist’s Concept)
Since the spacecraft’s landing in February 2021, Perseverance’s exploration of the crater floor and the delta have led to scientists developing a detailed timeline for the crater’s formation. They now […]