Final orbital distribution of the control model after evolving the primordial scattered disk over 4.5 Gyr under the gravitational influence of the four giant planets on their current orbits. (CREDIT: ...
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course. When ...
Beyond the edge of Neptune, a distant realm of icy debris known as the Kuiper Belt stretches deep into space. This frozen frontier holds the scattered remains of the early solar system, offering ...