Electron microscope images of marine bacteria infected with the non-tailed viruses studied in this research. The bacterial cell walls are seen as long double lines, and the viruses are the […]
MIT
Posted inExoplanets, -moons, -comets, Habitable Zones
Circular Orbits Identified for Small Exoplanets
Viewed from above, our solar system’s planetary orbits around the sun resemble rings around a bulls-eye. Each planet, including Earth, keeps to a roughly circular path, always maintaining the same […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Water/Hycean Worlds & Oceanography
Life On An Aquaplanet
An MIT study finds an exoplanet, tilted on its side, could still be habitable if covered in ocean. Nearly 2,000 planets beyond our solar system have been identified to date. […]
Posted inHabitable Zones, Impact events, Press Release
Small Impacts Likely Erased Much of Earth's Primordial Atmosphere
Today’s atmosphere likely bears little trace of its primordial self: Geochemical evidence suggests that Earth’s atmosphere may have been completely obliterated at least twice since its formation more than 4 […]
Posted inExtinction events, Habitable Zones
Acidic Rain: A Possible Cause of End-Permian Mass Extinction?
Rain as acidic as undiluted lemon juice may have played a part in killing off plants and organisms around the world during the most severe mass extinction in Earth’s history. […]