Season 1 Episodes
1. Alien Planets: Anyone Home?
February 20th, 2002
2. The Case for Mars
November 23rd, 2025
3. Lives of Stars
November 23rd, 2025
4. Hubble's Heritage
March 20th, 2002
5. Extreme Astronomy
April 3rd, 2002
6. 21st Century Cosmos
April 10th, 2002
Our perception of the universe has changed dramatically from thoughts of a starry, unknown realm to knowledge of the countless galaxies that surround us, yet the scale of the cosmos remains a mystery. How old is the universe? How much matter and energy does the universe contain? 21st Century Cosmos probes questions of cosmology with international astronomers to refine our understanding of how stars and galaxies are formed, if the universe is flat or curved, and how and why the universe will continue to expand.
7. Children of Stardust
November 23rd, 2025
8. The Enigma of Venus
November 23rd, 2025
9. Episode 9
November 23rd, 2025
