The “roar”, as it has been described,Â is from the distant cosmos, and was detected with a balloon-borne instrument called ARCADE. The instrument flew for four hours at an altitude of 37 kilometers above Texas in July 2006, mapping a doughnut-shaped region that covered some 7% of the sky.
Reportedly, many older surrounding galaxies are upset about the noise. Calls reporting the racket have been flooding into Cosmic Police Headquarters for weeks. A police spokesperson said they’ve sentÂ officers out to speak to the culprit on more than one occasion, but unfortunately, there are no noise ordinances in the region of space from which the roar originates, so there’s not much they can do.
The Milky Way galaxy said in a phone interview that it had no problem with the noise, but could see where others might be disturbed by it.
AnotherÂ galaxy identifying itself only as “Murray” commented to his neighbor over the back fence, “What, we went through theÂ turmoilÂ following the Big BangÂ for this?Â Oy, the kids today with their loud radio signals.” He then covered his ears and spit in the direction of the cosmic noise.
Meanwhile back on Earth,Â Alan Kogut, leader of the balloon-borne experiment, says the loud radio signal seems to be coming from beyond the Milky Way. But astronomersÂ don’tÂ know the exact cause ofÂ the static, though the prevailingÂ theory isÂ that itÂ comes from the universe’s first generation of stars.
In the early universe, there were stellar behemoths, hundreds of times more massive than the Sun.Â These very large starsÂ died within the first billion years after the Big Bang, andÂ collapsed into black holes,Â whichÂ may have spewed out jets of charged particles that produced radio emission.
At any rate, it’s an exciting new discovery, but will take time to analyse the signal thoroughly.