Earth is the only planet known to maintain life. Find out the origins of our home planet and some of the key ingredients that help make this blue speck in space a unique global ecosystem.

This clip describes that, during the 16th Century, much of humanity believed that the Earth was the center of the universe, except for one man: Copernicus. Copernicus theorized that the Earth actually revolved around the sun, to scrutiny of the church. Giordano Bruno believed Copernicus and read Lucretius' banned book, which expanded his thinking that the universe was unbounded.

The Earth sings about all of the aspects of this planet. Did you know that three-quarters of Earth is water?

This clip states how far everthing is from the Earth and how small Earth really is relative to the universe. Neil deGrasse Tyson helps us understand the scale of our planet.

Hilda and Lowly are looking at the starry night sky, but Hilda wants to take a closer look at the stars. Lowly suggests using a telescope.