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

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.

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

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

Elon Musk is taking the long view. The billionaire SpaceX founder has long said that humanity needs to expand its footprint out into the solar system — specifically to Mars, which is the most suitable ...

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 ...

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

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% ...

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