The Signal That Keeps Calling From Deep Space 📡

For a few milliseconds, something out there outshines entire galaxies in radio light. Astronomers call them fast radio bursts.

The first was found in 2007, buried in old telescope data. Each burst lasts about a millisecond yet releases roughly as much radio energy as the Sun puts out over days. Most flash once and vanish. A few repeat, on schedules nobody fully understands.

In 2020, one burst was finally traced to a source inside our own galaxy: a magnetar, the ultra-magnetic corpse of a dead star. That solved part of the mystery. It did not solve all of it. Some bursts come from places where no magnetar should be.

Every day, hundreds of these signals likely sweep through the Earth unnoticed. We have only ever caught a fraction of them.

Sources: Lorimer et al. (2007), CHIME/FRB collaboration, NASA/ESA magnetar observations.

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Видео The Signal That Keeps Calling From Deep Space 📡 канала Chronos Data