The Solar System is a fascinating place, with each planet orbiting the Sun at its own unique distance. But how far apart are these planets, and how do they travel through space? Uncover the true ...

Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

The new image, which shows Earth along with an even smaller point of light coming from the moon, harkens back to Carl Sagan's ...

Earth is the planet we have the best opportunity to understand in detail—helping us see how other rocky planets behave, even ...

An annular solar eclipse occurs when the moon is farther away from Earth in its orbit, making it appear smaller. Fact check: Flat Earth claim based on gas pressure fails to account for gravity's ...

Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

Discovered last month by a telescope in Chile, the comet known as 3I-Atlas is only the third known interstellar object to ...

When people picture space, they often imagine endless black emptiness dotted with planets and stars. But new research shows ...