Earth isn’t the only planet to go through ice ages. A handful have hit our home planet in the last 2.5 billion years, with the most recent – which peaked […]
Craters
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Ceres, Comets and Asteroids, Cryobiology, Icy Worlds, Imaging & Spectroscopy, Impact events, Status Report, Water/Hycean Worlds & Oceanography
An Ancient And Impure Frozen Ocean On Ceres Implied By Its Ice-rich Crust
Ceres is a key object in understanding the evolution of small bodies and is the only dwarf planet to have been orbited by a spacecraft, NASA’s Dawn mission.
Posted inAstrogeology, Callisto, Caves, Craters, Mountains, Subsurface, Lava Tubes, Ganymede, Icy Worlds, Jupiter, Mapping, Geodesy, Cartography, Bathymetry, Status Report
Iceworld Morphology: Dome Craters on Ganymede and Callisto May Form by Topographic Relaxation of Pit Craters Aided by Remnant Impact Heat
The icy Galilean satellites display impact crater morphologies that are rare in the Solar System. They deviate from the archetypal sequence of crater morphologies as a function of size found […]
Posted inCaves, Craters, Mountains, Subsurface, Lava Tubes, Cryobiology, Europa, Habitable Zones, Icy Worlds, Press Release
Icy Impacts: Gauging The Thickness Of Ice On Europa
Sometimes planetary physics is like being in a snowball fight. Most people, if handed an already-formed snowball, can use their experience and the feel of the ball to guess what […]
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 […]