Dying planet producing 9 mn km-long comet-like tail: Astronomers
Astronomers at Massachusetts Institute of Technology have discovered a rocky planet about 140 light-years away that is being gradually dismantled as it orbits close to its star. The planet, BD+05 4868 Ab, is leaving behind comet-like tail of dust as it loses its outer layer, researchers have found. The tail is said to be up to nine million kilometres long.