Fast Radio Bursts are the most extreme signals in astronomy: in a few thousandths of a second one can release as much energy as the Sun does in days, from billions of light-years away. For years there was exactly one known event and a maddening false alarm traced to staff impatiently opening a microwave. Then one started repeating, SETI took a serious look, and the trail led to the most violent objects in the cosmos — magnetized dead stars whose crusts crack like the surface of the Earth.
PBS Space Time on the leading explanation: 'starquakes' on magnetars, where a shifting hyper-magnetic field fractures a neutron star's crust and unleashes a burst brighter than anything nearby should be able to produce.
The full catalogue: the 2007 Lorimer burst, the years of the 'Perytons' false alarm, the dispersion measures that place these things at cosmological distances, and every competing theory from starquakes to (briefly) aliens.
How new radio arrays turned a one-off curiosity into a field detecting bursts daily — pinning some to specific galaxies and, in 2020, catching one from inside our own Milky Way from a known magnetar.
The Dunlap Institute's primer on the physics: why a millisecond flash implies a source no bigger than a small city, and how the smearing of the signal across frequencies lets astronomers measure how far it traveled.
SETI takes the question seriously — for a while. The first repeating burst was too strange to ignore, and this is the careful, open-minded case for (and mostly against) an artificial origin.
The alien-hunting project funded by Yuri Milner and Stephen Hawking trains its instruments on the one source that keeps flashing — and finds it firing over and over from a dwarf galaxy 3 billion light-years away.
A clear expert walk-through of where the science stands now: the taxonomy of one-off versus repeating bursts, and why a single origin story struggles to explain both populations at once.
The closing panorama: how a handful of unexplained blips became a cosmic tool — using the bursts to weigh the invisible matter strung between galaxies, even as their true engines stay partly hidden.