A harsh drop in temperatures is being delivered to the eastern two thirds of the U.S. thanks to a polar vortex dipping down ...

Watch as an Airbus A330 creates stunning wingtip vortices during take-off, revealing the power of lift and airflow in action.

New York City recorded its first snow of the season as a powerful polar vortex swept across the eastern US, bringing Arctic ...

The polar vortex shot into public lexicon sometime around January 2014, after a notable outbreak of icy arctic air that ...

An arctic blast is headed to NJ and NYC, bringing frigid air. Will it snow? How cold will it get? Here's the timing, temps ...

A freeze warning is in effect for most of the CSRA from Monday 8pm to Tuesday 9am. Temperatures will be below freezing for an ...

An early blast of Arctic air is sweeping across the eastern U.S. this week, bringing frigid temperatures and the season’s ...

An Arctic front is diving deep into the United States this weekend, sending temperatures plummeting across all 48 contiguous ...

Research on adults who take S.S.R.I.s shows they tamp down sexual desire. Why aren’t we studying what that could mean for ...