What happened to those 'little red dots' Webb observed? When the James Webb Space Telescope (JWST) began operations, one of its earliest surveys was of galaxies that existed during the very early universe. In December 2022, these observations revealed multiple objects that appeared as "little red dots" (LRDs), fueling speculation as to what they might be. While the current consensus is that these objects are compact, early galaxies, there is still debate over their composition and what makes them so red. On the one hand, there is the "stellar-only" hypothesis, which states that LRDs are red because they are packed with stars and dust.
https://phys.org/news/2025-10-red-dots-webb.html

Saturn's moon Titan just broke one of chemistry’s oldest rules Scientists from NASA and Chalmers University have discovered that incompatible substances can mix on Titan’s icy surface, breaking the “like dissolves like” rule of chemistry. Under ultra-cold conditions, hydrogen cyanide can form stable crystals with methane and ethane. This surprising reaction could help explain Titan’s mysterious landscapes and offer clues to how life’s building blocks formed.
https://www.sciencedaily.com/r....eleases/2025/10/2510

MIT finds traces of a lost world deep within planet Earth Researchers have discovered chemical fingerprints of Earth's earliest incarnation, preserved in ancient mantle rocks. A unique imbalance in potassium isotopes points to remnants of “proto Earth” material that survived the planet’s violent formation. The study suggests the original building blocks of Earth remain hidden beneath its surface, offering a direct glimpse into our planet’s ancient origins.
https://www.sciencedaily.com/r....eleases/2025/10/2510

Rogue black hole shocks astronomers with record radio blast For the first time, scientists observed a black hole tearing apart a star far from its galaxy’s center, producing the fastest-changing radio signals ever recorded. The event, AT 2024tvd, revealed delayed bursts of energy months after the initial destruction, hinting at mysterious, episodic black hole activity. This rare find reshapes understanding of where supermassive black holes reside and how they evolve.
https://www.sciencedaily.com/r....eleases/2025/10/2510

Astronomers detect a cosmic “heartbeat” in pulsar signals Researchers analyzing pulsar data have found tantalizing hints of ultra-slow gravitational waves. A team from Hirosaki University suggests these signals might carry “beats” — patterns formed by overlapping waves from supermassive black holes. This subtle modulation could help scientists tell whether the waves stem from ancient cosmic inflation or nearby black hole binaries, potentially identifying the true source of spacetime’s gentle vibrations.
https://www.sciencedaily.com/r....eleases/2025/10/2510