The moon crossed the sun's path on February 17, causing what is known as an annular solar eclipse. The sun was not covered ...

Five years ago, Winter Storm Uri brought the Texas power grid to its knees. Temperatures plunged across the state for nearly ...

From nocturnal wildlife safaris to stargazing train rides, a dark sky expert shares her favorite astrotourism adventures around the world.

Out in the Kuiper Belt, the massive doughnut of debris beyond Neptune, about one in 10 kilometer-scale objects have surprised scientists with their unexpected shape. Rather than resembling a ball, ...

Pluto's discovery by Clyde Tombaugh, key political changes in Scandinavia and America, plus cultural and scientific milestones.

A solar storm is a catchall term that describes any disturbance in the sun that involves the violent ejection of solar material into space. This can come in the form of coronal mass ejections, where ...

Delta on Mars. A recent study showed that Mars was warm and wet billions of years ago. The finding contrasts with another ...

The Paducah Public Schools Board of Education approved a demolition contract for the vacant Forest Hills school building — ...

A recent study showed that Mars was warm and wet billions of years ago. The finding contrasts with another theory that this era was mainly cold and icy. The result has implications for the idea that ...

Of the solar system’s planets, Saturn piques the human imagination with its signature rings and impressive moon count of 274. But compelling new research reignites theories of an ancient collision ...

Surprised astronomers said Thursday they have discovered a star with planets in a bizarre order that defies scientific ...