Ultra-high energy cosmic rays are energized by magnetic turbulence, not shock acceleration, according to new research.

Introducing basic principles of plasma physics and their applications to space ... the propagation of discontinuities and shock waves in the solar wind, and analysis of various types of plasma waves ...

A stronomers have observed a cosmic collision of extraordinary magnitude as the galaxy NGC 7318b plowed into its neighbors at an astonishing speed of 2 million mph, triggering a shock wave akin to ...