On August 25, 2012, NASA's Voyager 1 spacecraft measured drastic changes in radiation levels, more than 11 billion miles from the Sun. Anomalous cosmic rays, which are cosmic rays trapped in the outer ...

Planetary scientists led by Paolo Sossi have determined that Earth assembled almost entirely from material originating in the ...

The mysterious space rock that journeyed through our solar system became notably brighter as it departed, scientists have revealed. Researchers observed that Comet 3I/ATLAS, which one Harvard ...