Christos Panagiotou

In the Andromeda galaxy, a star faded away without a flash. James Webb and the Chandra telescope saw a dim object in a dust cocoon. This proves that a black hole can be born in the quiet collapse of a star, not just in the fire of a supernova.

X-ray telescopes caught a double flare from the black hole in galaxy NGC 3783: first hard radiation, then soft. On the Sun, that pattern signals magnetic reconnection. The black hole also blasted out a stream of gas, akin to solar eruptions but billions of times stronger. For the first time, it's be