With help from AI, scientists discovered a fresh crater made by an impact that shook material as deep as the Red Planet’s mantle.
Impact events
Posted inAstrogeology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Impact events, Jupiter, Mapping, Geodesy, Cartography, Bathymetry, Meteorites & Asteroids, Saturn, Status Report, Uranus
The Current Cratering Rate on the Regular Satellites of Jupiter, Saturn, and Uranus
We aim to compute the impact rates for objects with a diameter of 1 km onto the regular satellites of Jupiter, Saturn and Uranus using our latest dynamical simulations of […]
Posted inComets and Asteroids, Extinction events, Impact events, Mapping, Geodesy, Cartography, Bathymetry, Meteorites & Asteroids, Press Release
Chicxulub Asteroid Impact Sulfur Release Was Less Lethal In Dinosaur Extinction
Approximately 66 million years ago, the Chicxulub asteroid, estimated to be 10-15 kilometer in diameter, struck the Yucatán Peninsula (in current-day Mexico), creating a 200-kilometer-wide impact crater. This impact triggered […]
Posted inAstrogeology, Impact events, Meteorites & Asteroids, Panspermia, Status Report
Exchange Of Meteorites Between The Terrestrial Planets And The Moon
The evolution of the orbits of bodies ejected from the Earth, Moon, Mercury and Mars was studied. At ejection velocities about 12-14 km/s, the fraction of bodies ejected from the […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extinction events, Fossils & Paleontology, Habitable Zones, Imaging & Spectroscopy, Impact events, Lava / magma ocean / Volcanic Worlds, Meteorites & Asteroids, Press Release
Massive Volcanic Eruptions Did Not Cause The Extinction Of Dinosaurs
Massive volcanic eruptions on the Indian peninsula have long been proposed as an alternative cause for the demise of the dinosaurs. This phase of active volcanism took place in a […]
Posted inAstrogeology, Astronomy & Telescopes, Comets and Asteroids, Exoplanets, -moons, -comets, Extinction events, Imaging & Spectroscopy, Impact events, Meteorites & Asteroids, Press Release, TRAPPIST-1
The Smallest Asteroids Ever Detected In The Main Belt
The asteroid that extinguished the dinosaurs is estimated to have been about 10 kilometers across. That’s about as wide as Brooklyn. Such a massive impactor is predicted to hit Earth […]
Posted inAtmospheres, Climate, Weather, Extinction events, Fossils & Paleontology, Gaia - Planetary Perspectives, Impact events, Meteorites & Asteroids, Origin & Evolution of Life, Press Release
Massive Asteroid Impacts Did Not Change Earth’s Climate In The Long Term
Two massive asteroids hit Earth around 35.65 million years ago, but did not lead to any lasting changes in the Earth’s climate, according to a new study by UCL researchers.
Posted inAstrochemistry, Astrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Comets and Asteroids, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Impact events, Status Report
An Impact-free Mechanism To Deliver Water To Terrestrial Planets And Exoplanets
To date, the most widespread scenario is that the Earth originated without water and was brought to the planet mainly due to impacts by wet asteroids coming from further out […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Comets and Asteroids, Exoplanets, -moons, -comets, Habitable Zones, Icy Worlds, Impact events, Press Release
The Response of Planetary Atmospheres to the Impact of Icy Comets I: Tidally-Locked exo-Earths
Impacts by rocky and icy bodies are thought to have played a key role in shaping the composition of solar system objects, including the Earth’s habitability. Hence, it is likely […]
Posted inAstrogeology, Biosignatures & Paleobiology, Impact events, Meteorites & Asteroids, Microbiology & Virology, Panspermia, Planetary Protection & Biosafety, Press Release
Rapid Colonization of a Space‐returned Ryugu Sample by Terrestrial Microorganisms
The presence of microorganisms within meteorites has been used as evidence for extraterrestrial life, however, the potential for terrestrial contamination makes their interpretation highly controversial.