An artist's impression show a black hole sucking material from a star
An artist's impression shows a microquasar that allowed scientists to find the location of a natural particle accelerator.
  • A study uncovered how cosmic objects are sending accelerated particles through space. 
  • Jets coming from quasars and supernovae can send dangerous cosmic rays that hit Earth. 
  • For the first time, a study showed how the cosmic rays are accelerated to near the speed of light.

A small black hole is helping scientists understand how mysterious cosmic rays can barrel through the universe and hit Earth at nearly the speed of light.