Massive reductions in Antarctic sea ice in recent years has been correlated with more stormy days in the Southern Ocean, and could have implications for vital ocean currents.

On Christmas Eve, NASA's Parker Solar Probe flew closer to the sun than any human-made object ever — a stunning technological feat that scientists liken to the historic Apollo moon landing in 1969.

The James Webb telescope has focused its attention on an oddball space rock lurking between Jupiter and Neptune. The unusual "centaur," named 2060 Chiron, has features of both comets and asteroids.

The moon is a round, rocky body, but is it a planet? The answer, scientists say, is complicated.

We have trillions of body clocks — a central one in the brain and others in each cell of our body. Here's how they work with light to control our health.