Mercury’s water ice has always looked like a contradiction. By day, the planet’s surface can soar to about 430 degrees ...

The source of the significant water ice deposits hidden in Mercury's polar regions has been a topic of debate among ...

It's already a lot to endure frigid winter conditions, but what happens when we get an unwelcome visit from an even colder spell of air like a polar vortex? "A polar vortex is simply that: a vortex ...

A Polar vortex has covered the Philadelphia region under a canopy of frigid temperatures, but many people may not realize what a Polar vortex actually is, and the dangers — like frostbite — such ...