"The only way to see a scale model of the solar system," Wylie Overstreet says, "is to build one." So he and a group of friends did just that, tracing out the planets' orbits and then filming a ...

That process continues even today in the solar system, albeit at a snail’s pace. But this simple model fails to explain the latest discoveries of planets on highly inclined orbits.

Southwest Research Institute scientists propose a new model for the formation of compact exoplanetary systems that contain multiple rocky planets in tight orbits around their star.

To understand this better, Rasio and his collaborators developed a precise computer model of the orbits of the planets as they are today and then evolved them back tens of thousands of years.

A slew of recent studies have used computer simulations to model the hypothetical conditions on rocky exoplanets with exotic ...

Some zones encircling baby stars are far more popular than others, drawing crowds of giant planets while the other potential paths for orbits remain empty.Now computer simulations may reveal why ...

Need some good news? The orbits of the eight main planets—and Pluto—will mostly remain where they are for the next 100,000 years.

A new model provides an explanation for the bizarre orbits of distant objects in the solar system that doesn't require influences from a massive ninth planet.