EarthSuper-Earths draw asteroids to other worlds, which may seed life Asteroid collisions can be destructive – just ask the dinosaurs – but they also bring key ingredients for life. Super-Earths can draw them to nearby worlds 51¶¯Âþ
SpaceTears for Cassini: why it's OK to well up over a lump of metal Expect more of the modern phenomenon of mass mourning for a machine when the space probe Cassini makes its death dive into Saturn, says Joelle Renstrom Comment