Virial Theorem Lesson

Stars exist from a few million years to over 10 billion years, depending on their mass. Scholars perform a play acting as stars to learn about their different life cycles. They develop an understanding of many of the fundamental concepts...

Pupils often wonder how we know the distance to various stars. Starting with a thought experiment and progressing to a physical experiment, they determine the brightness and distance to various stars. The evaluation requires...

What happens to stars as they get older? A simulation takes pupils through the life cycle of stars based on their masses. The resource introduces the Hertzsprung-Russell diagram and the common relationships and life cycle patterns observed.

In this orbit of stars in galaxies learning exercise, students are given an equation that models the orbital speeds of stars as they relate to their distance from the nucleus of a galaxy. Students solve 5 problems using this equation and...

Sometimes fuzzy, sometimes irregularly shaped—and occasionally cannibalistic? These are just a few of the remarkable galactic facts contained in a short video that's sure to amaze! The narrator describes the four main types of galaxies,...

There's one in every group! It turns out there are rouge stars in our universe that don't follow the rules. An episode of an extensive solar system playlist describes the behavior of hypervelocity stars and how they interact in our...

Ever heard of von Neumann machines? These self-replicating machines could allow for the expansion of human civilization beyond Earth. The video describes how this type of technology could open many doors for exploration and life.

Fifteen detailed pictures and informative captions delve deep into the exploration of stars—their life cycle and importance in the universe. 

Galaxies contain gas, dust, and billions of stars or more. They come in four main shapes: elliptical, spiral, peculiar, and irregular. Galaxies can collide, and grow in size by eating each other. [11:51]

From supernova to neutron star ... what's next? A video presentation describes a neutron star and its life in the universe. Learners then answer questions online to asses their understanding.