We usually think of our Solar System as a calm, well-organized family of planets, but a new study suggests its early days may ...

Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published ...

A research team led by University of Minnesota School of Physics and Astronomy Professor Yong-Zhong Qian uses new models and evidence from meteorites to show that a low-mass supernova triggered the ...

Illustration comparing the planets of the Solar System and the Sun on the same scale. The planets are shown to scale relative to each other but their distances are not. From left to right the bodies ...