Astronomers have detected for the first time long lasting radio signals like "heartbeats" that are being emitted from a far-off galaxy.
It has been classified as a fast radio burst (FRB) - an intensely strong burst of radio waves of unknown astrophysical origin that normally last for a few milliseconds at most.
But uniquely this new signal continues for up to three seconds, which researchers say is about 1,000 times longer than the average FRB.
