Over millions of years, these objects grew larger, sweeping up material in their orbits and becoming the planets we know today. This model of solar system formation is known as the nebular hypothesis.

And until 2006 there was one more planet in our solar system, but not anymore ... in Greenwich Park in East London to build his own scale model. This is based on the sun being the size of ...

TRI-CITIES, Wash., - A new educational project is set to transform the trails along the Columbia River into a scale model of ...

Given that the Earth is 93 million miles from the Sun, the Maine model’s scale ... is a planet or an asteroid, McCartney is of the old school. "Pluto was certainly part of the solar system ...

Pluto was reclassified as a dwarf planet in 2006. Our solar system may have a ninth planet after all, researchers say. The possibility that an additional planet may be hidden far into the solar ...