ESA's Euclid mission is exploring the "dark universe." The space telescope's latest images offer fascinating new insights.

“An Einstein ring is an example of strong gravitational lensing,” says lead author Conor O’Riordan of the Max Planck Institute for Astrophysics. “All strong lenses are special, because ...

Beyond its immediate scientific impact, the discovery of a complete Einstein ring in NGC 6505 hints at what is yet to come. The Euclid mission is expected to uncover thousands of such lenses ...

In order to explain this, in 1905, Einstein suggested in Annalen der Physik that light comprises quantized packets of energy, which came to be called photons. It led to the theory of the dual ...

“Nearby lenses are exciting because they allow us to test the validity of general relativity on astronomical scales.” Einstein’s general theory of relativity predicts that light will bend ...

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 ...

Astronomers have identified the closest ever Einstein ring, a rare phenomenon where light from a further-off galaxy is bent by the gravity of a galaxy closer to Earth. The ring was previously ...