Astronomers are ringing in the new era of astrophysics with a galaxy cluster that looks like a celebration.
Sandeep K S
Dec 31, 2025
1 min read
Unravel the cosmic enigma of the "Champagne Cluster," where the mesmerizing interplay of galaxy clusters offers insights into dark matter. Two scenarios are depicted: "The Bounce Back," a 2-billion-year collision leading to a second union, and "The Recent Collision," a 400-million-year aftermath with clusters parting ways. Discovered on December 31, 2020, the event showcases the power of superheated gas and dark matter, outweighing galaxies within the clusters.
What if a galaxy could exist without the brilliant stars that normally make galaxies visible? Cloud-9 may offer astronomers one of the most intriguing examples yet. Located near the spiral galaxy M94,
What if a galaxy could exist without the brilliant stars that normally make galaxies visible? Cloud-9 may offer astronomers one of the most intriguing examples yet. Located near the spiral galaxy M94, this mysterious hydrogen-rich object appears to contain enormous amounts of gas while producing almost no detectable starlight.
Astrophysicists have completed ASTRID, the largest cosmological hydrodynamic simulation ever run, tracing the universe from the cosmic dawn ($z=99$) down to the present day ($z=0$). By resolving 166 billion particles across 815 million light-years, ASTRID unveils how supermassive black holes co-evolve with galaxies and sculpt the cosmic web.
Scientists have uncovered the first robust evidence of a black hole and neutron star crashing together while orbiting in an oval path, challenging long-standing assumptions about cosmic pair formation.
Most neutron star-black hole pairs are expected to adopt circular orbits long before merging, their orbits slowly rounded out by the constant emission of gravitational waves over millions of years.
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