Why does it matter if Pluto is a planet or a dwarf planet? Because for me it just makes it more confusing in our solar system. I know that some things in space are planets and some are stars and some ...

Samantha Lawler does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Last year, astronomers discovered a "tenth planet." This new planet is similar to, but slightly larger than, Pluto. All of this is exciting news, but not without controversy. Now, some scientists say ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. One new children's book takes readers on a journey to Pluto with NASA's New Horizons spacecraft. ...