THE question of the origin of the solar system is one that has ... The criticisms of this hypothesis in its original form are very well known, and will only be summarized here.

HAROLD JEFFREYS has published a paper in which here examines a number of theories proposed to explan the origin ... solar system 1. In the early part of the paper he points out that the resonance ...

Using a NASA supercomputer to run models, researchers led by SwRI astronomer David Nesvorny now believe that the Inner Oort cloud looks like a spiral disk, around 0.24 light-years across, with two ...

Nottingham noted, “The moon’s history is the Earth’s history too—the record of asteroid bombardments etched on its face can ...

Around 14 million years ago, the sun and its planets passed through a region full of interstellar dust. This could have ...

Scientists have discovered a potential three-body system in the Kuiper Belt, the Altjira system, challenging planet-formation theories.