Think of it as the giant Koosh ball in the sky. A dazzling new image depicts the sun's many magnetic field lines, which snake all around Earth's star but are densest near sunspots. These darker and ...

For the first time, the bright, shimmering auroras that dance across the sky have been directly linked to specific disturbances in Earth's magnetic field. "These observations reveal the missing link ...

A little piece of Mesa View Middle School shot up into space March 11, took a sojourn on the International Space Station, and ended up circling the planet 250 times before it touched down at the ...