Auroral Beads Precede Space Substorms

Auroras, the disturbances in the magnetosphere caused by solar wind, are one of the most beautiful and easily observed space phenomena. Now, a special type of aurora, draped east-west across the night sky like a glowing pearl necklace, is…

Move Over Silicon, Hello Nickelates

Is it too soon to say silicon-based electronics’ days are numbered? They consume a substantial and ever-increasing share of the world's energy. And a number of researchers are exploring the properties of materials that are more complex than…