THE question of the origin of the solar system is one that has been a source ... the actual variation of the viscosity with the time. Scientific Papers, vol. ii. The question that next arises ...

Now, there’s no scientific reason we can’t have thousands of planets in the solar system, but cultural considerations are a different issue. An overabundance of planets would seem to dilute ...

DALLASI absolutely love this, it's called an orrery, and it's a little mechanical model of our solar system. You can see the planets here, orbiting the sun as they would do in real life.

An Egyptian astronomer called Ptolemy (AD100-168) described one of the earliest ideas for how the Solar System is structured. Ptolemy’s model and many earlier ideas of the Solar System had the ...

This event holds cultural, historical, and scientific ... forces. ・Solar system dynamics: By observing the motion of planets during an alignment, scientists refine models of orbital mechanics ...

The organic ingredients to life, hints to where Earth’s water came from, and the fundamental building blocks of our planet ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...