Researchers with the help of IceCube Neutrino Observatory spotted massless particles coming from the Milky Way galaxy and points beyond the galaxy. According to the researchers, discovery confirmed the existence of cosmic neutrinos and also revealed the cosmic rays' origin.

The IceCube Neutrino Observatory is a neutrino telescope located at Amundsen-Scott South Pole Station in Antarctica. About 86 shafts, equipped with detectors, were used to construct observatory. The detectors try to find telltale light from high-energy particles.

Neutrinos are subatomic particles having little mass. The elementary particles pass through a matter easily without interacting much with it. Black holes are exploding stars the sources the elementary particles come from. These elusive particles don't usually interact with matter, but sometimes, one hits atomic nucleus on earth. In that situation, the neutrino develops a particle, muon. Scientists search for this particle when they are looking for neutrinos.

The muons are so fast that they can move with a speed more than the speed of light and generate light waves. The IceCube Neutrino Observatory discovered neutrinos from outside the Milky Way about two years ago, but at that time, they were not sure about it. According to the researchers, led by a team at the University of Wisconsin-Madison, they wanted to ensure that the detected neutrinos were not coming from sources with the Milky Way.

To make sure, they searched for neutrinos coming from all directions. Between May 2010 and May 2012, the researchers using the observatory spotted over 35,000 neutrinos, and some of them were showing that they came from cosmic sources.