A team of researchers has confirmed the possibility of existence of hypervelocity planets, which zoom through space at a few percent of the speed of light – up to 30 million miles per hour. An artist’s conception of a hypervelocity planet (David A. Aguilar / CfA) Seven years ago, astronomers found the first runaway star flying out of our Galaxy at a speed of 1.5 million miles per hour. A new study by researchers from the Harvard-Smithsonian...