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

When light passes through these areas, its path is warped by that pull. It's a phenomenon called gravitational lensing. Light traveling through space is how we see any of the space objects in the ...

In astronomy, a compound lens can form naturally when two galaxies align perfectly, combining their gravitational effects. When researchers first discovered the system J1721+8842, they thought a ...

Nestled at the heart of the "Cosmic Horseshoe" — a gravitational lensing system — this ultra-massive black hole (UMBH) weighs a staggering 36 billion solar masses, pushing the boundaries of ...