A treasure trove of celestial wonder! 🌟 Our NASAHubble Space Telescope recently spotted a mix of different galaxies, some of which belong to the same larger structure — a galaxy cluster located in the middle of the frame. The gigantic mass of this cluster creates the fascinating phenomenon of strong gravitational lensing. The gravity of the cluster bends light coming from behind it in a similar way to how the base of a wine glass bends light. The effects of this lensing can be clearly seen as curved streaks forming a circular shape around the center of the frame. Astronomers can use these distorted galaxies to calculate the mass of the cluster — including the mass of the dark matter within it — and to peer deeper into the universe than otherwise possible. Gravitational lensing not only distorts the views of galaxies, it also enlarges their appearance in the sky and magnifies their light. Hubble has viewed gravitational lensing many times and produced truly stunning images. Astronome...