Features
A Search for a Supermassive Black Hole Binary
Astronomers search for spacetime ripples from a possible supermassive black hole binary at the heart of the elliptical galaxy 3C 66B.
Features
Jupiter’s Atmosphere Holds Steady
Astronomers knew that Jupiter’s upper atmosphere could be strangely warm, but only now do they have global maps showing just where those hot spots are and how long they last.