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Because cosmic ray particles are electrically charged, they change course when they encounter magnetic fields. This means scientists can’t trace them back to their sources. Gamma rays, however, travel ...

"We found a collision within a collision. The galaxy collision triggered a wave of star formation that, over hundreds of millions of years, led to the birth and eventual collision of these neutron ...

Astronomers have tracked a powerful blast of radiation called a gamma-ray burst (GRB) back to its source, finding a collision between extreme stellar remnants called neutron stars within colliding ...