Astronomers once thought winds generated by supermassive black holes affected only their host galaxies, but a recent study found that their energy can also reach surrounding galaxies. Winds from a supermassive black hole can carry energy far beyond the galaxy that contains it. New observations show that this influence can extend roughly 300,000 light-years and [...]

The dreaming brain surges with energy, yet its neurons may consume it faster than they can replenish it. A new mouse study from Tohoku University has uncovered a surprising energy imbalance during rapid eye movement (REM) sleep. As the brain entered this dream-rich stage, blood volume increased across the cortex, and astrocytes accumulated more metabolic [...]