More radio bursts coming from deep space have been detected by the Parkes radio telescope in Australia.
Earlier this year the Australia team detected a fast radio burst coming from an unknown source. Since then at least 11 radio bursts of this kind have been detected from around the world.
This time, 5 bursts were detected including a double peaked burst. The bursts were separated only by 2.4 milliseconds.
Scientists are left baffled at what could be causing this, and are excited as the Australia team believes it could lead to a great discovery.
Emily Petroff from Swinburne University, was this first to “decode” the transmission, saying that this was something important not just random space noise.
The latest discovery, reported in the Monthly Notices of the Royal Astronomical Society, has got astronomers excited because it has a ‘clear two-component profile’.
A fast radio burst (FRB) is a high energy astrophysical phenomenon manifested as a transient radio pulse lasting only a few milliseconds. FRBs show a frequency-dependent dispersion consistent with propagation through an ionized plasma.
As of March 2015 eleven bursts have been detected, all but one by the Parkes radio telescope.
The origin of FRBs is not known: they are generally thought to be extragalactic due to the anomalously high amount of pulse dispersion observed. It has also been suggested that they may originate from nearby stars. It has also been speculated that they might be signs of extraterrestrial intelligence.