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 ...
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James Webb Telescope Uses Cosmic “Magnifying glass” to Detect Stars 6.5 Billion Light-Years Away
The research group observed a galaxy nearly 6.5 billion light-years from Earth; when the universe was half its current age.