Mercury is the closest planet to the sun. It has no atmosphere and is, as such, covered in craters. It's also incredibly hot but, surprisingly, has water ice hiding beneath its surface.

Mercury’s path through our solar system is, well, a little eccentric, and some of its movements were a mystery astronomers couldn’t explain for a long time. Then, in the early 20th century, Einstein reran the numbers and proved a whole...

Did you grow up thinking there were nine planets in the solar system? You might have been right all along! Today we discuss the possibility of distant worlds in our solar system.

A satellite in elliptical orbit speeds up as it approaches the planet—thanks to angular momentum conservation. Learn how to calculate angular speed at perihelion using Kepler’s laws and orbital geometry.

Earth's orbit is constantly evolving through Milankovitch Cycles.

With the scale of ecology now understood, we can start to look at one of the most important concepts in ecology, climate. What is climate? How does it differ from weather? How does climate change over time and why? Let's do a deep dive now!

Sungrazing comets are a special class of comets that come very close to the sun at their nearest approach, a point called perihelion. To be considered a sungrazer, a comet needs to get within about 850,000 miles from the sun at...

This video discusses the concept of planetary movement or orbit. The video also touches on the different shapes of orbits, the forces of gravity that keep objects in orbit, and the balance between momentum and gravity that is necessary...