ScienceFrom Tiny Pebbles Do Giant Gas Planets Grow: Study The largest planets in our solar system may have grown from the tiniest beginnings, new research suggests. 'Pebbles' came together to form the gas giants Jupiter and Saturn, scientists suggest.by Jim Algar
ScienceNASA Astronaut Scott Kelly Captures Aurora Draped Over Earth In Amazing Colorful Veil (Video)by Jim Algar