Science ❯ Astronomy ❯ Cosmology

Universe

Expansion Expansion and Contraction Big Crunch Cosmic Objects Life in the Universe End of the Universe Galactic Structures Hubble Tension Galaxies Cosmological Principle Galactic Events Rotation Cosmic Rotation Fate of the Universe Lifespan Heat Death Cosmic Evolution Size of the Universe Dark Universe Life Cycle of the Universe Life Beyond Earth Planetary Systems Interstellar Travel Cosmic Questions Exoplanets Ultimate Fate Shape Analysis Early Universe Space Phenomena Gravitational Wave Background Vibrations Expansion Rate Deep Space Observations Dark Energy Spectroscopic Instrument Universe Expansion Dark Energy Research

New Chandra Image Reveals 'Champagne Cluster' as Two Merging Galaxy Clusters

A new Chandra–optical composite highlights a rare cluster merger valuable for dark‑matter tests.

Astronomers Report Tentative Exomoon Around HD 206893 B Using Precision Astrometry

Global VLBI Detects Lowest-Mass Dark Object at Cosmological Distance

DES/DESI Analysis Fuels Model Predicting a Future Big Crunch

36-Billion-Solar-Mass Black Hole Confirmed in Distant Cosmic Horseshoe Galaxy

Axion-Based Dark Energy Model Foresees Big Crunch in 33 Billion Years