First-Ever ‘Einstein Zig-Zag’ Found in Space Could Help Solve the Universe’s Expansion Mystery
A compound lens forged by two galaxies is helping astronomers get a bead on the Hubble Constant and dark energy.
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Astronomers discover ultra-massive ‘Red Monster’ galaxies from the early Universe
Recent observations by the James Webb Space Telescope (JWST) have uncovered a trio of ultra-massive galaxies, each nearly as ...