A telescope in outback Western Australia has been used to listen to a mysterious cigar-shaped object that entered our Solar System late last year. The unusual object–known as ‘Oumuamua–came from […]
astrogeology
Posted inAstronomy & Telescopes, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Interstellar, Press Release, SETI & Technosignatures
Breakthrough Listen Releases Initial Results and Data from Observations of ‘Oumuamua
No evidence of artificial signals emanating from the object so far detected by the Green Bank Telescope, but monitoring and analysis continue. Initial data are available for public inspection in […]
Posted inAstrochemistry, Press Release
Planet Structure and Composition From Stellar Chemistry
The chemical composition of stars that have orbiting planets provides important clues about the frequency, architecture, and composition of exoplanet systems. We explore the possibility that stars from different galactic […]
Posted inAstrochemistry, Astrogeology, Press Release
Collisions of Small ice Particles Under Microgravity Conditions
Understanding the collisional properties of ice is important for understanding both the early stages of planet formation and the evolution of planetary ring systems. Simple chemicals such as methanol and […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Icy Worlds, Imaging & Spectroscopy, Press Release
Snow In An Infant Planetary System
A snow line has been imaged in a far-off infant planetary system for the very first time. The snow line, located in the disc around the Sun-like star TW Hydrae, […]
Posted inAtmospheres, Climate, Weather, Biosignatures & Paleobiology, Mars, Missions & Hardware, Press Release, Robotics/Rovers/UAVs, Tricorders & Sensors
Reports Detail Mars Rover Clues to Atmosphere’s Past
A pair of new papers report measurements of the Martian atmosphere’s composition by NASA’s Curiosity rover, providing evidence about loss of much of Mars’ original atmosphere.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Press Release, Titan
Titan Shows Surprising Seasonal Changes
Detailed observations of Saturn’s moon Titan have now spanned 30 years, covering an entire solar orbit for this distant world.
Posted inAstrochemistry, Astrogeology, Impact events, Moon, Panspermia, Press Release
Building Blocks of Early Earth Survived Collision That Created Our Moon
Unexpected new findings by a University of Maryland team of geochemists show that some portions of the Earth’s mantle (the rocky layer between Earth’s metallic core and crust) formed when […]
Posted inAstrogeology, People Of Astrobiology, Press Release
In Memoriam: Ronald Greeley
The astrobiology community deeply mourns the loss of Ronald Greeley. Ronald Greeley, a Regents’ Professor of planetary geology at Arizona State University, who has been involved in lunar and planetary […]
Posted inArtemis & Lunar Exploration, Astrochemistry, Astrogeology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Impact events, Mapping, Geodesy, Cartography, Bathymetry, Moon, Press Release
Caltech Team Finds Evidence of Water in Moon Minerals
That dry, dusty Moon overhead? Seems it isn’t quite as dry as it’s long been thought to be. Although you won’t find oceans, lakes, or even a shallow puddle on […]