Several days with temperatures of 10-20 degrees below the historical average could be dangerous to plants and ruin outdoor plans.

The first human SpaceX flight to orbit over Earth's north and south poles splashed down in the Pacific Ocean off the coast of Southern California on Friday.

A SpaceX crew has landed in the Pacific after orbiting the north and south poles. Learn about their record-breaking mission ...

The first four humans to orbit over Earth's north and south poles have safely returned to Earth.

International four-person crew returns after nearly four days flying a 90-degree polar orbit and observing Earth's poles from ...

Since launching Monday night from Florida, the four-person crew, led by and paid for by Maltese investor Chun Wang, traveled ...