This 13-minute video lesson attempts to comprehend the scale of the small: from honey bees, to cells, to viruses, to atoms. [Cosmology and Astronomy playlist: Lesson 58 of 85]

This 5-minute video lesson looks at seasons and why they aren't dictated by the Earth's closeness to the sun. [Cosmology and Astronomy playlist: Lesson 69 of 85]

This 7-minute video lesson looks at images of star fields and nebulas. [Cosmology and Astronomy playlist: Lesson 20 of 85]

This 12-minute video lesson looks at how to measure stellar distance using parallax. [Cosmology and Astronomy playlist: Lesson 23 of 85]

This 9-minute video lesson provides another introduction to stellar parallax. [Cosmology and Astronomy playlist: Lesson 22 of 85]

This 2-minute video lesson provides clarification on parallax. [Cosmology and Astronomy playlist: Lesson 24 of 85]

This 9-minute video lesson looks at supermassive black holes. [Cosmology and Astronomy playlist: Lesson 34 of 85]

This 2-minute video lesson provides a clarification about supernovae. [Cosmology and Astronomy playlist: Lesson 29 of 85]

This 2-minute video lesson looks at the causes precession and other orbital changes. [Cosmology and Astronomy playlist: Lesson 74 of 85]

This 13-minute video lesson looks at the process of stars becoming white and black dwarfs. [Cosmology and Astronomy playlist: Lesson 18 of 85]

This 7-minute video lesson explains why cepheids pulsate. [Cosmology and Astronomy playlist: Lesson 32 of 85]

This 8-minute video lesson looks at why gravity gets so strong near dense objects. [Cosmology and Astronomy playlist: Lesson 33 of 85]

Using solar images and date obtained from Astronomical Observatory of the University of Coimbra lets you study the sunspots and their behaviour over days.

From Earth’s moon to Europa, our solar system is filled with interesting set of natural satellites. Through art and science, children learn about moons of our solar system with the Deadly Moons activity.

Review the environmental factors that make the Earth habitable and compare them to other worlds within our Solar System. Use creative thinking to design an alien life form suited for specific environmental conditions on an extra-terrestrial world within our Solar System.

The Early Universe provides an introduction to modern cosmology. The first part of the course deals with the classical cosmology, and later part with modern particle physics and its recent impact on cosmology.

The purpose of this activity is to recreate the classic egg-drop experiment with an analogy to the Mars rover landing. The concept of terminal velocity will be introduced, and students will perform several velocity calculations. Also, students will have to design and build their lander within a pre-determined budget to help reinforce a real-world design scenario.

This course is a detailed technical and historical exploration of the Apollo project to "fly humans to the moon and return them safely to earth" as an example of a complex engineering system. Emphasis is on how the systems worked, the technical and social processes that produced them, mission operations, and historical significance. Guest lectures are featured by MIT-affiliated engineers who contributed to and participated in the Apollo missions. Students work in teams on a final project analyzing an aspect of the historical project to articulate and synthesize ideas in engineering systems.

The 'Big Bang' is said to be the origin of our Universe. This unit will help you to comprehend what happened in the moments immediately after the Big Bang and during the initial cooling period. You will also gain an understanding of how this event turned in to the Universe we live in today.

This is an activity on apparent sizes and apparent angles, related to understanding how distance affects what we observe in outer space (the sun, moon, stars, or planets).