Second chance planets 2: Pre-terraformed, habitable evaporated cores of mini-Neptunes

Sometimes removing the outer atmosphere from a Neptune-like planet can reveal an ocean paradise!

Second chance planets: Iceball worlds that thaw out when their stars go red giant

A while back I wrote a series of posts called How planets die. It was about all the ways planets can be sterilized or destroyed.  I even made a “planetary death scale”.  Gruesome stuff. Let’s liven things up with a new mini-series on Second-Chance Planets. These are planets that get a second chance at life. …