Astronomers intercept radio frequencies 1.5 bn light years away

Astronomers intercept radio frequencies 1.5 bn light years away: A telescope in Canada has reportedly picked up 13 bursts of radio waves, or FRBs, from a source in outer space 1.5 bn light years away, BBC reports. FRBs are short flashes of bright radio frequencies appearing to originate from deep space. Theories on what caused them to appear include a neutron star with a powerful magnetic field, two stars merging, and — among a small number of observers — alien spaceships.