Brazil's flooded south paralyzed as waters remain high

Brazil's flooded south remained paralyzed Monday, with schools and health centers shut and streets cut off as overflowing rivers showed no sign of receding after torrential rains in a disaster that has left 147 dead.

Dazzling auroras fade from skies as sunspot turns away

The spectacular auroras that danced across the sky in many parts of the world over the weekend are fading, scientists said Monday, as the massive sunspot that caused them turns its ferocious gaze away from Earth.

Scientists discover huge magnetic toroids in the Milky Way halo

The origin and evolution of cosmic magnetic fields is a long-standing unsolved question at the frontier of astronomy and astrophysics research and has been selected as one of the key areas of investigation for many major ...

Electron vortices in graphene detected for the first time

When an ordinary electrical conductor—such as a metal wire—is connected to a battery, the electrons in the conductor are accelerated by the electric field created by the battery. While moving, electrons frequently collide ...

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