European Telescope Discovers ‘Einstein Ring’ in Nearby Galaxy — VOA Learning English
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Scientists say Europe’s Euclid space telescope has discovered a bright ring of light circling a nearby galaxy. The observed light is known as an Einstein ring.
Researchers have estimated the ring encircles a galaxy 590 million light years away from Earth. A light year is the distance light travels in a year – about 9.5 trillion kilometers.
Astronomers have long known about the galaxy where the ring was discovered. So, they were surprised that the bright ring had not been identified before.
It was discovered in a well-studied galaxy called NGC 6505. It is in the constellation – a group of stars – named Draco.
Einstein rings are rare. They form when light from a more distant galaxy bends around a…
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