NASA telescope images reveal brightest explosion ever recorded, as a star collapses into a Black Hole
The afterglow of GRB 221009A faded over the course of about 10 hours
Mystery as “alien” radio signal blips 2,000 times in past two months
Scientists believe the signals come from collapsed stars - but some have suggested they might be evidence of extraterrestrial civilisations
Super-Earths are bigger, more common and more habitable than Earth itself
Astronomers are discovering more of the billions they think are out there
