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.
China's FAST telescope—the largest on Earth—has scoured the archives to find 19 pulsars missed by previous searches, including rare "transient" ghosts.
Pulsars (spinning neutron stars) are lighthouses of the cosmos. Most are found near the Galactic Plane, where stars are dense.
In space, fire doesn't rise. It forms a ghostly sphere that is harder to detect and harder to kill. New research aims to tame flames for the journey to Mars.
On Earth, hot air is lighter than cold air. It rises, pulling fresh oxygen in from below. This convection gives fire its familiar teardrop shape and yellow color (soot).
Jupiter's outermost moon is a battered, icy archive of the early solar system. New thermal imaging is finally peeling back its scarred surface to reveal what lies beneath.
Using the ALMA telescope, researchers analyzed thermal data to peer into the top few centimeters of Callisto's surface (regolith).
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