Tiny ‘ghost particle’ helps scientists solve century-old space radiation mystery

Latest news

    A tiny ‘ghost’ subatomic particle, detected by scientists as it was racing through the Antarctic ice, may hold the key to the biggest mysteries of the universe and open up a new kind of astronomy based on the study of neutrinos.

    Since cosmic rays were discovered in the early 1900s, scientists have been working to find the source of the energetic particles bombarding our planet. It was no easy task, as cosmic rays are electrically charged and their route becomes untraceable after numerous contacts with magnetic fields in space.

    And this is where neutrinos came to astronomers’ rescue. These tiny subatomic particles have no charge and, on most occasions, don’t interact with other matter at all. It makes them nearly impossible to detect but, if spotted, they can be reliably traced to their place of origin as they travel almost in a straight line.

    Read more

    Israel wants to send landing craft to the Moon by year’s end (VIDEO)

    And last September the IceCube Neutrino Observatory  near the South Pole was finally able to detect and follow the path of a single neutrino, using its 5,160 light sensors, placed deep in the Arctic ice.

    “It’s exciting, no doubt, to have finally nailed the cosmic accelerator,” lead scientist with IceCube Francis Halzen of the University of Wisconsin-Madison, told National Geographic of his teams’ success.

    In less than a minute after an elusive particle (travelling at almost the speed of light) was detected, the observatory asked astronomers around the globe to point their telescopes to where the neutrino supposedly began its journey.

    The path of the “ghost” particle was traced back to a spot in the sky near the constellation of Orion where a massive source of gamma-rays, called blazar, was located.

    One of the most powerful of the known blazars, in the TXS 0506+056 galaxy some four billion light-years away from Earth, was confirmed to be the birthplace of the neutrino. However, it doesn’t mean that the mystery of the source of space radiation has received a univocal answer.

    The discovery is “very impressive, and a step in the direction of identifying the origin of the cosmic rays, one of the great outstanding astrophysical puzzles,” Kathryn Zurek of Lawrence Berkeley National Laboratory said, adding, however, that there may be other sources of cosmic rays.

    The scientists believe that particles also emanate from star-forming galaxies, interacting supernovae, low-luminosity gamma-ray bursts and radio galaxies, among other sources.

    But the discovery, which was announced on Wednesday in Science magazine and other outlets, still has an amazing potential and may even allow humanity to someday understand how matter prevailed over anti-matter after the Big Bang.

    It’s a breakthrough in so-called ‘multimessenger’ astronomy, which relies on data of different categories in its research of the universe, with neutrinos being a new and important source of information, helping the scientists establish a full picture.

    READ MORE: Report reveals outdated NASA policy poses contamination risk for Earth, universe

    “Neutrinos held the promise for some time of being able to map the sky like you would with light but at higher energies. We can ask questions or try to answer questions that you couldn’t otherwise,” Greg Sullivan of the University of Maryland, who was involved in the IceCube project, told Space.com.

    Sullivan said the research into the ‘ghost particle’ will continue and will be expanded, as scientists plan to construct an even larger neutrino detector than the IceCube.

    View the original article: https://www.rt.com/news/432910-neutrino-cosmic-rays-antarctic/?utm_source=rss&utm_medium=rss&utm_campaign=RSS

    If you like this story, share it with a friend!

    In the same category are

    Spy charm? After interviewing Putin, Fox host set off to vacation in St. Petersburg, Russia While Fox News anchor Chris Wallace and Vladimir Putin were at loggerheads during their sit-down in Helsinki, Wallace seems to have decided to see for...
    Pompeo vows support to Iranian ‘people’s voice’ against ‘mafia’ leaders US Secretary of State Mike Pompeo has pledged US support for "the long-ignored voice of the Iranian people," announcing the launch of the Farsi-langua...
    Tony Blair’s institute gets $10m from Saudi Arabia for modernization help – report Former UK Prime Minister Tony Blair's 'Institute for Global Change' has reportedly received multi-million dollar payments from the Saudi Arabian gover...
    Trump to Iran’s Rouhani: Never threaten the US again or suffer consequences US President Donald Trump has promised "consequences the likes of which few have ever suffered before" to Iranian President Hassan Rouhani in a late-n...
    Moment Toronto shooter starts rampage that killed 1, injured 13 caught on VIDEO The moment a gunman went on a shooting rampage in Toronto, killing at least one and injured over a dozen, has been caught on camera. The shooting took...
    Salmonella fears spark massive Ritz Cracker recall across US & Puerto Rico The makers of Ritz Crackers have warned customers not to consume some of their popular products over fears they have been contaminated with the harmfu...

    Leave a comment

    Your email address will not be published. Required fields are marked *

    This site uses Akismet to reduce spam. Learn how your comment data is processed.