Einstein predicted it a hundred years ago… and now they are measuring it alive: two stars are approaching each other like a cosmic clock.
A hundred years ago, Albert Einstein predicted that massive objects in orbit would send small spirals into space themselves and gradually line up together. Astronomers are now watching that process happen, step by step, in dying stars about 4,000 light-years from Earth. Their slow collision is not just cosmic drama. It gives scientists the clearest … Read more