PhysicsTime crystals: A new state of matter that outlasts the universe A bizarre oscillating material that seems to run on a never-ending loop has apparently been made in the lab, bending the cast-iron laws of thermodynamics Features
SpaceMany tiny galaxies could host mammoth black holes The discovery of the second and third known ultra-compact dwarf galaxies with gargantuan black holes at their cores suggests such a mass mismatch may be common News