Researchers discover collisionless shock waves as cosmic engines accelerating subatomic particles in space to extreme speeds.

A bow shock is a shockwave that forms when fast-moving solar wind abruptly slows down and heats up as it encounters Earth’s magnetosphere. It is called a bow shock because it resembles the wave ...

Expect an uptick in aurora sightings near the spring equinox on March 20, as celestial geometry swings in favor of ...