LifePinball planets: How life could start in a violent solar system We assumed habitable planets couldn't exist in solar systems where gas giants ricochet around. So why do we keep finding them? Features
SpaceLonely exoplanet orbits its star at greatest distance yet seen A closer look at the motions of a small star and a misfit planet shows the two are linked by gravity - and can teach us about planets and stars alike 51¶¯Âþ