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 ...

The structure is nearly 600 million light-years from Earth and is an early display of the nascent dark matter telescope's power.

Using the Hubble Space Telescope (HST), astronomers have observed a supermassive galactic open cluster designated Westerlund ...

Euclid blasted off on its six-year mission to explore the dark universe on 1 July 2023. Before the spacecraft could begin its ...