Science news articles about 'energetic cosmic rays'

... space at nearly the speed of light. The most energetic cosmic rays hit with the punch of a 98-mph ... and radiation within M82, they produce gamma rays, which can then escape their home galaxy and reach ...

... , which are very energetic atomic particles that continually bombard Earth. The most energetic cosmic rays, which are potentially hazardous to astronauts, are believed to be produced in intense shock ...

... no threat to mankind. Nature's own cosmic rays regularly produce more powerful particle ... to exist, because regular interactions with more energetic cosmic rays would already have destroyed the Earth ...