ESA's Euclid mission is exploring the "dark universe." The space telescope's latest images offer fascinating new insights.
In astronomy, a compound lens can form naturally when two galaxies align perfectly, combining their gravitational effects.
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 ...