Read our COVID-19 research and news.

Watch: Chance alignment of distant galaxies creates Einstein ring

Some of the best photos of a complete Einstein ring are now available, thanks to two obliging galaxies and the Atacama Large Millimeter/submillimeter Array, the world’s most powerful ground-based observatory, Discovery News reports. First predicted by Albert Einstein, the ring occurs because of gravitational lensing, which happens when light from a distance source, such as a galaxy or star, is warped around a comparatively closer massive body like another galaxy or black hole. In these images, ancient galaxy SDP.81, nearly 12 billion light-years away, peeks out from behind an intervening galaxy about 4 billion light-years away, bringing to mind thoughts of hobbits and cursed video cassette tapes.  

Latest News