Topic: magnetic field

Hawk flying through space (Photo illustration by Salon/Getty Images)

Space weather disrupts bird migration

Matthew Rozsa
(<a href='http://www.shutterstock.com/pic.mhtml?id=82000267'>Lukiyanova Natalia / frenta</a> via <a href='http://www.shutterstock.com/'>Shutterstock</a>)

A possible pole reversal?

John Tarduno, Vincent Hare - The Conversation