Colour equals information, so the more spectral bands an Earth-observing satellite sees, the greater quantity of environmental findings returned to its homeworld. Now ESA is ready to fly a hand-sized […]
2018
Posted inHabitable Zones, Press Release
Stellar Winds, Magnetized and Unmagnetized Planets, and Habitability
The extent to which a magnetosphere protects its planetary atmosphere from stellar wind ablation depends upon how well it prevents plasma from entering and how well it traps otherwise escaping […]
Posted inHabitable Zones, Press Release
Habitability of Exoplanet Waterworlds
We model the evolution of ocean temperature and chemistry for rocky exoplanets with 10-1000 times Earth’s H2O but without H2, taking into account C partitioning, high-pressure ice phases, and atmosphere-lithosphere […]
Posted inExtinction events, Press Release
Muon Radiation Dose and Marine Megafaunal Extinction at the end-Pliocene Supernova
Considerable data and analysis support the detection of a supernova at a distance of about 50 pc, ~2.6 million years ago. This is possibly related to the extinction event around […]
Posted inPlant Biology, Press Release
Origins of Photosynthesis in Plants Dated to 1.25 Billion Years Ago
The world’s oldest algae fossils are a billion years old, according to a new analysis by earth scientists at McGill University. Based on this finding, the researchers also estimate that […]