As the polar vortex disappears every spring, the way it ends dictates why some years we don’t experience these mid-spring ...

Vortex dynamics in cylindrical containers encapsulate a range of complex fluid behaviours driven by rotational motion. In these geometries, the interplay between centrifugal forces and viscous effects ...

President Trump delivers the State of the Union to Congress. by SETH BORENSTEIN AP Science Writer It's as if the world has been turned upside-down, or at least its weather. You can blame the ...

Every winter, millions of people brace for news about the polar vortex - that vast, spinning mass of frigid Arctic air high in the stratosphere that occasionally escapes its usual boundaries and ...