The Euclid space telescope has, by chance, discovered its first Einstein ring, and it is absolutely stunning. Beyond its aesthetic appeal, this perfectly circular Einstein ring has allowed researchers ...

Dark matter is a hypothetical form of matter believed to be everywhere, outnumbering regular matter (what we're made of) 5-to-1. It doesn’t emit or interact with light, so it is invisible to our ...

Astronomers have found an incredibly rare complete 'Einstein ring' - predicted by Albert Einstein more than 100 years ago.