Cohorts of co-orbital planets

This post is an adventure in world-building. I use N-body simulations to find orbital configurations of planetary systems that (I think) are completely new, pretty awesome and unexpected. It involves cohorts of co-orbital planets… … More Cohorts of co-orbital planets

How Borisov found Borisov (the second interstellar object)

To start things off, a limerick: My dear old friend ‘Oumuamua I asked her — What’s up? What is new-ah? “I’ve been thinking of That guy Borisov The interstellar number Two-ah!” Figuring out what’s up with a new population of astronomical objects is like going to a party without knowing the dress code.  Here’s what’s … More How Borisov found Borisov (the second interstellar object)

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