Astronomers discovered 44 ancient stars using gravitational lensing—an astrophysicist explains how they did it
A group of astronomers have made history by capturing an image of a record number of stars from a time when the universe was ...
How astronomers used gravitational lensing to discover 44 new stars in distant galaxy
The most powerful telescope to be launched into space has made history by detecting a record number of new stars in a distant ...