E. Maiorano

In Euclid's deep fields, stars flare up that were not in any catalog. A telescope built to map dark matter has worked like a camera trap: one frame, and a cosmic explosion is already on record.

Radio telescopes have caught a signal that repeats like a beacon in the fog. It's a fast radio burst — a brief flash of radio waves from a distant galaxy. Nearby, astronomers search for a persistent source — a faint glow that lingers after the burst, like embers after fireworks.