University of Colorado
University of Colorado: Ph Et Interactive Simulations: My Solar System
An interactive simulation that teaches about motion, acceleration, and velocity by allowing students to build their own solar system and watch the effects of gravitational pull and how that changes with initial position, velocity, and...
NASA
Nasa: Imagine the Universe: Supernovae (Advanced)
Supernovae are divided into two basic physical types, including a description of supernova types and how they are classified based on the existence of hydrogen spectral lines. Definitions of key terms are provided.
TED Talks
Ted: Ted Ed: Is There a Center of the Universe?
It's been a long road to the discovery that Earth is not the center of the Solar System, the Milky Way, or the universe; great thinkers from Aristotle to Bruno have grappled with it for millennia. But if we aren't at the center of the...
NASA
Nasa: Imagine the Universe: Black Holes
Learn what black holes are and the myths that surround them.
Harvard University
Harvard University: Eye on the Sky, Feet on the Ground
An ebook filled with information and classroom activities covering several astrological topics such as the Earth's rotation and the solar system. Many tips and teaching tools are available to aid in discovering what the sky has to offer.
University of Southern California
University of Southern California: Ocean Currents and Climate
The climate of our planet is greatly affected by Earth's oceans. Learn here about the different oceanic currents and the role those currents play on climate.
Other
University of Leicester: Comets, Asteroids & Meteorites
Provides a general overview of comets, asteroids, and meteorites. Content includes ways to identify them in the night sky, as well as detailed information on each type of small body.
Harvard University
Harvard University: The Sun
Includes a brief history of the sun's development and its future. Also provides simple statistics, solar activities, and references.