Crop Circles | Can’t Sleep? Learn About One of History’s Strangest Mysteries

The Hubble Space Telescope has been observing the universe from above Earth’s atmosphere for decades. This episode explores how Hubble works, the instruments it uses to study space, and the discoverie...

7 Sep 31min

The Sahara stretches across much of North Africa and is the largest hot desert in the world. This episode explores the geography of the Sahara, its vast landscapes, the people who have lived and trave...

4 Sep 32min

Cotton has been grown, spun, and woven for thousands of years. This episode explores how cotton plants are cultivated, how their fibers are turned into textiles, and the long history of cotton product...

2 Sep 33min

When winter arrives and food becomes scarce, some animals have a remarkable way of waiting it out. This episode explores how hibernation works, what happens to an animal’s body during long periods of ...

31 Aug 34min

The cosmos contains everything we know, from planets and stars to galaxies stretching across unimaginable distances. This episode explores the structure of the universe, how our understanding of it ha...

28 Aug 32min

Doughnuts have taken many forms across cultures and centuries. This episode explores the history of doughnuts, how they’re made, and the many varieties that have developed around the world. Along the ...

26 Aug 32min

Easter Island is one of the most isolated inhabited islands in the world, famous for the enormous stone statues known as moai. This episode explores the island’s Polynesian settlement, the creation an...

24 Aug 33min

Snow leopards are elusive cats that live among the rugged mountains of Central and South Asia. This episode explores their physical characteristics, mountainous habitat, behavior, and the remarkable a...

21 Aug 28min