January 10, 2019
Mysterious repeating energy bursts have been detected for only the second time.
Fast radio bursts, or FRBs, are radio emissions that appear temporarily and randomly, making them not only hard to find, but also hard to study.
The latest signals to be detected reached Earth from a galaxy 1.5 billion light years away.
The most likely explanation is that they were created by powerful objects in space.
Experts have debated whether black holes or super-dense neutron stars are responsible, but others have suggested more outlandish theories.
Among them is Professor Avid Loeb, from the Harvard-Smithsonian Centre for Astrophysics in the US, who believes that they could be evidence of incredibly advanced alien technology.
This article was posted: Thursday, January 10, 2019 at 7:50 am