Don't worry though—it's not like one planet simply fell out of the solar system. ... Related: ‘There Is No Planet B’—75 Earth Day Instagram Captions To Inspire Change.

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. Are planets in the solar system that are ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

All other planets in our solar system are currently visible in the night sky. Venus, Mercury, Saturn, Jupiter and Mars can be seen with the naked eye, and Uranus and Neptune with binoculars.

Though Pluto has formally been considered a dwarf planet for almost two decades, it still has many lessons left for planetary scientists — including hints about how the solar system formed.

For the last month and change, you might've seen the headlines about the planetary alignment, or a planetary parade, going on in our solar system. And that's true. In January 2025, Venus, Mars ...