Tag: planet formation
-
Mega-Earths and mini-Neptunes: exoplanets get weirder
According to what we thought we knew about planet formation, there should be a limit to how massive a rocky planet (similar to Earth, Mars, the Moon, etc.) can grow. Above that mass, a planet should start collecting enough hydrogen gas to make a thick atmosphere, switching it over from a terrestrial planet into one…
Galileo's Pendulum 