Astronomer Jean-Luc Margot has come up with a new definition for planets that may help us categorize worlds outside of the solar system, and we may have also discovered a new dwarf planet within the solar system!

Last week we talked about the orbits of the Earth and our Moon. But today we're going to go a little bigger... well, a lot better. Did you know that there is a massive Black Hole at the center of our Galaxy? Or that Pluto's orbit is...

How the orbit of the planets is dictated by mass and the force of gravity. Physics - Our Solar System - Learning Points. The curved path of one object around another is its orbit. Objects orbit due to the effects of gravity. The...

The video discusses the relationship between orbital speed, orbital radius, and orbital period of objects in space. It explains how to calculate orbital speed using an equation and provides examples such as calculating the orbital speed...

Satellite footage, telescopic photos and animation are used to teach students about the many fascinating aspects of our solar system. Viewers are introduced to ancient astronomers, telescopes, observatories and space exploration....