Let me demonstrate how they should be spaced out with a scale model of my ... more planet in our solar system, but not anymore.' DALLASOver there by the dome is poor old Pluto, everybody's ...

The Sweden Solar System is the largest scale model of the Solar System in existence ... matching its real average distance of 778 million kilometers. Even Pluto is accurately modeled, about 300 ...

This model of solar system formation is known as the nebular hypothesis. The solar system is structured in a roughly flat plane called the ecliptic, with most planets orbiting the sun in the same ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why ...

Pluto isn’t the only dwarf planet in our solar system's outer reaches. Now is an ideal time to look for the egg-shaped Haumea, says Abigail Beall ...

Once the quirky underdog of our solar system, Pluto held planetary status until 2006, when it got a cosmic demotion that still stings space fans. Discovered in 1930, Pluto was the ninth planet for ...