Two months from today, on August 21, the sun will disappear across America. For a swath of the country from Portland, Oregon, to Charleston, South Carolina, it will look like someone just turned off the sun in the middle of the day.
Science & Technology
A new model on how stars are formed has added weight to the hypothesis that most – if not all – stars are born in a litter with at least one sibling. Our own star at the centre of the Solar System is probably no exception, and some astronomers suspect that the Sun's estranged twin might be the evil one, blaming it for the death of the dinosaurs.