The Giant Impact Hypothesis is the most widely accepted theory for the creation of the Moon; the authors here investigate possible configurations of the early Solar System to produce the right conditions for impact between Earth and the doomed proto-planet Theia.
A new hypothesis posits that the ice giant planets formed between the CO and N2 icelines in the Solar System’s protoplanetary disk.
A new model explains Mercury’s major density with magnetism.
Heat from the proto-Earth may have caused the difference in the Moon’s far- and near-side crust thicknesses.
This paper uses Cassini’s infrared eyes to watch the Sun appear to pass behind Titan and light up its atmosphere. From these observations, the authors model different components of the thick atmosphere, and gain new insights about how exoplanets with similar hazy atmospheres might look.
From examining extrasolar planetary systems, we can test if the Titius-Bode “law” is actually a law.