This video is about cosmology – the study of the properties of the entire universe.

For a short outline of the contents of this video, see the summary.

For a complete written record of the words in this video, see the transcript.

Learn More

The Wilkinson Microwave Anisotropy Probe (WMAP) has played an important role in cosmology research. They have an excellent website with information about cosmology:

How big is the universe? Check out these links to get an idea for the extraordinary scale of the universe:

To learn more about Dark Matter and Dark Energy, check out these units from Physics for the 21st Century:

Research Challenges