According to NASA, at least one bright planet can be seen on most nights, depending on the weather.

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, ...

A new study hints that Saturn's largest moon, Titan, was created around 400 million years ago, when two massive moons smashed into each other. This hypothesis could also help to solve several other ...

The planets are visible throughout February, "but they’ll be lined up best toward the end of the month,” NASA says.

Each year, the world's leading climate scientists evaluate the most critical evidence on how our planet is changing. Their ...

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

Since the 1990s, scientists have discovered approximately 6,100 planets outside our solar system, called exoplanets.

Scientists have identified a rocky outer planet in a system where a gas giant was expected. The discovery challenges ...

By Will Dunham WASHINGTON, Feb 14 (Reuters) - Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that formed beyond the orbits of its ...

Astronomers have uncovered a distant planetary system that flips a long-standing rule of planet formation on its head. Around the small red dwarf star LHS 1903, scientists expected to find rocky ...

Sediments from Scotland hint that ocean-atmosphere interactions continued more than 600 million years ago despite widespread ice.

A NASA planetary defense officer warns thousands of near-Earth asteroids capable of destroying a city remain undetected.