Nobody knows how electrons gain the relativistic speed required for high-energy cosmic events. A new study provides a possible explanation.

Astrophysical bow shocks and other multiscale phenomena work like cosmic particle accelerators to launch electrons to near-light speeds.

Abstract: We present a model for empirically reproducing line profiles of molecular hydrogen emission in bow shocks. The model takes into account bow velocity, dissociation limit, a cooling function, ...

Astrophysical bow shocks and other multiscale phenomena work like cosmic particle accelerators to launch electrons to near-light speeds.

During this event, electrons in Earth's foreshock region—an area where the solar wind is predisturbed by its interaction with the bow shock—reached unprecedented energy levels, surpassing 500 keV.

Using conjunction observations by the Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission, we present an MHD HFA with a core filled with magnetosheath material around ...

India's Agni is a ballistic missile that has attracted the attention of leaders worldwide. Capable of carrying nuclear warheads, it has a range that spans from short-range to intercontinental.

The strongest magnetic field directly measured in the universe to date The study uses real-time data from the MMS mission and the THEMIS/ARTEMIS mission to observe a large-scale, time-dependent (i.e., ...

After hours: January 29 at 4:08:12 PM EST ...

During this event, electrons in Earth's foreshock region -- an area where the solar wind is predisturbed by its interaction with the bow shock -- reached unprecedented energy levels, surpassing ...