Don't let the incoming string of relatively warm days in the greater Philadelphia region fool you; the polar vortex is still around.

From hundreds of miles above Earth, the brutal polar vortex that gripped the Great Lakes turned into something strangely ...

Learn about outside reversal patterns, their significance in technical analysis, and how they indicate potential trend ...

In a remote corner of East Greenland, a section of mountain gave way, collapsing into a narrow glacial fjord bounded by steep ...