And every year, we discover more and more objects (usually small asteroids or comets) joining the solar system. In 1846, astronomers had already identified the eight main planets. But that hasn't ...

It seems 2025 will have a strong start, too, with a planet parade just a few weeks into the new year. A planet parade is when ...

Turn your attention to the nearby sky: to the 8 planets, 288 moons ... and one of these clouds eventually collapsed into our solar system. The bulk of the matter formed the Sun.

Test your knowledge on our solar system, from the biggest and smallest planets to the behemoth mountain on Mars.

It's possible for our solar system to capture a rogue planet and give it a home as it hurtles through the galaxy, according ...

19, 2024 — Scientists have unveiled groundbreaking research on the origins of lunar water, offering insights that could reshape our understanding of the Earth-Moon system and the broader solar ...

Comets without tails, called dark comets, are a newly discovered space object. Now, astronomers know they come in 2 classes.

New studies offer a clearer picture of how the outer solar system formed and evolved based on analyses of trans-Neptunian objects (TNOs) and centaurs. The findings reveal the distribution of ices in ...

The solar system is approximately 4.6 billion years old. Astronomers believe that roughly 100 million years into its existence, the planets first began to form in a rotating, flat cloud of gas ...