There are trillions of charged particles—protons and electrons, the basic building blocks of matter—whizzing around above ...

Our curious observations While I teach the history of the space race in a space ... interact with electrons in the outer radiation belt. To test whether lightning was behind our inner radiation ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Lauren Blum, University of Colorado Boulder (THE CONVERSATION) There are trillions ...