Webb Space Telescope reveals a surprisingly clear atmosphere on planet TOI-421 b, helping scientists understand the evolution ...

The Sun is the most important star in the entire Solar System, as it is not only the gravitational force around which all other objects within it rotate, but it accounts for 99.8% ...

The sun has produced stunning auroras on Earth in recent years as solar activity has peaked—but expect more in coming years ...

The idea that our Solar System is representative of other solar systems hasn't survived the age of exoplanet discovery.

At the time, the Earth would have been far closer to the moon than it is today, making it perhaps twice as large in the lunar ...

Researchers discovered Eos, a molecular cloud, using ultraviolet light. It is near Earth and lacks carbon monoxide. This ...

Discovered in 1930, Pluto was long considered our Solar System's ninth planet, but was unseated in 2006 after the discovery ...

Researchers say they found a curious dot on infrared images taken 23 years apart that seems to be moving in a manner consistent with a large, distant planet.

Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?

HERE’S a question: do you know what happens to pee in space? If yes, urine with a chance of nailing this quiz. If not, you ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...