Hubble detects 'cannonballs' shooting from star
NASA's Hubble Space Telescope has detected giant "cannonballs", almost twice the size of Mars, being ejected from near a dying star 1,200 light-years away. The plasma balls zoom at about one-million-kilometres per hour, equivalent to covering the Earth-moon distance in less than 30 minutes. Scientists estimated that the event has continued once every 8.5 years for at least 400 years.