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Cosmology

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Webb and Hubble Show Massive Star Clusters Break Free Faster

The finding offers a new yardstick for models of how stars shape galaxies.

Webb Reveals Non-Rotating Massive Galaxy in the Early Universe

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TESS Survey Identifies 27 Candidate Two‑Star Planets

Preprint Forecasts Big Crunch for the Universe Around 33.3 Billion Years After the Big Bang

ALMA Finds Semi-Heavy Water in Interstellar Comet 3I/ATLAS

Interstellar Comet 3I/ATLAS Shows Extreme Heavy-Water Signal, Pointing to an Ultra‑Cold Origin

DECam Image Reveals Sombrero Galaxy’s Giant Halo and Stellar Stream

Ultra-Faint Dwarf Galaxies Reveal Early-Universe Conditions in New LYRA Simulations

Hubble Marks 36 Years With New Trifid Nebula Image Showing Change

NASA Unveils Completed Roman Space Telescope With Early September Launch Target

Astronomers Pinpoint the Milky Way’s Star-Forming Edge at 35,000–40,000 Light-Years

Hubble Marks 36 Years With Sharper Trifid Nebula Portrait That Shows Change

DESI Finishes 5-Year Survey With Record 3D Map of 47 Million Galaxies

Astronomers Measure Cygnus X-1’s ‘Dancing’ Black Hole Jets at 10,000 Suns of Power

DESI Completes Five-Year Survey With Record 3D Map of the Universe

Cosmic Bounce Theory Suggests Black Hole 'Fossils' Could Account for Dark Matter

Most Precise Local Hubble Measurement Sets H0 at 73.5 km/s/Mpc

New COLIBRE Simulations Recreate Galaxy Growth and Support the Standard Model

Study Links Self-Interacting Dark Matter Clumps to Three Cosmic Puzzles

JWST Studies Report Strongest Evidence Yet of Population III Stars Near GN‑z11