The Frontier Is Everywhere • 1989 • episode "1/10" • The Sagan Series

11:55

From a greenhouse in Holland to a desert landscape in Iceland, scientists are using the earth to tests ways to keep a Mars settlement alive and well. It’s the ultimate survival challenge, requiring major innovations to find water, grow food and clean the air.

S1E4 • Destination Mars • 2015 • Astronomy

49:15

Earth has a companion in space so large that it rules our nights, our months, our ocean tides. Why Earth should have such a moon is one of the deepest mysteries of the Solar System. We tell the story of how the Earth’s satellite became the unlikely object of desire of the two Cold War superpowers.

S1E4 • The Planets • 2004 • Astronomy

49:08

This is the story of pioneering missions to neighboring planets and our first glimpses of their awe-inspiring terrains. From the giant lava plains of Venus to the volcanoes on Mars that dwarf Mount Everest, we journey around the rocky planets and then to the icy moons of Jupiter, Saturn and beyond.

S1E2 • The Planets • 2004 • Astronomy

51:31

Even with a surface temperature of -180C, Saturn's moon, Titan, could be another Earth. There's evidence of dunes made of quantities of organic material that could contain the building blocks for DNA. Astrobiologists are conducting studies on the possibility that life could be present on Titan.

12 • Cosmic Front • 2014 • Astronomy

3:22

Carl Sagan talks about our place in the universe

9/10 • The Sagan Series • 1989 • Astronomy

12:00

Today Phil explains how telescopes work and offers up some astronomical shopping advice.

#6 • Crash Course Astronomy • Astronomy