
Was a famous supernova an alien invader from another galaxy?
A composite image of the remnant of Kepler’s Supernova NASA/CXC/SAO/D.Patnaude One of the most famous exploding stars ever recorded by humanity may have been an invader from another galaxy, according to a new analysis of its movements. What is more, alien stars like this might be behind 1 per cent of all the supernovae we…