APOD from 2025-02-26

Einstein Ring Surrounds Nearby #Galaxy Center

NGC 6505's gravity creates an Einstein ring by distorting a distant galaxy's image into a circle, revealing its mass and dark matter content. Captured by ESA's Euclid #telescope in 2023, this rare alignment aids in studying cosmic details.

HD image at https://apod.nasa.gov/apod/ap250226.html#space #astronomy