Stars Killing Offspring Planets
According to the most popular theory for solar system formation, stars are essentially the parents of planets. Staying with the secular model, stars act up quite a bit in their youthful exuberance and do great damage to planets that are trying to evolve into something habitable.
Rocky planets (like the first four of our solar system) might not be exterminated if they can fire up their magnetic fields. Earth has one that provides a shield from solar radiation and such, but it is unlikely for other planets under their conditions.
Hubble finds blue star cluster, NASA / ESA, / L. Bianchi (usage does not imply endorsement) |