The end of the Solar System

Earth will lose its oceans. Chaos may destabilize the rocky planets. The Sun will go red giant and swallow the inner planets. The outer planets’ orbits will widen as the Sun becomes a white dwarf. Passing stars will destabilize the planets’ orbits and, in about 100 billion years, finally strip away the last planet. … More The end of the Solar System

Building the ultimate Solar System part 1: choosing the right star

We are building the ultimate Solar System.  Here is an introduction to the game.    What kind of star will anchor our ultimate Solar System? It comes down to two choices: stars like the Sun or cooler, redder stars sometimes called “cool stars” or “red dwarfs”. Why not stars bigger than the Sun?  Because they … More Building the ultimate Solar System part 1: choosing the right star