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

Real-life Sci-Fi world 11: Kalgash, a planet in permanent daytime (from Asimov’s Nightfall)

Isaac Asimov‘s sci-fi stories are one reason I wanted to become an astronomer (I talked about this in a recent interview). So I’m a little sad to shoot down a classic…. Nightfall is a classic Asimov story (and later, novel). The residents of a planet called Kalgash live in system of six stars that leaves … More Real-life Sci-Fi world 11: Kalgash, a planet in permanent daytime (from Asimov’s Nightfall)