A Reassuring Fable • 1989 • episode "3/10" • The Sagan Series

44:13

The Apollo space program embraces tragic setbacks and historic success; the last stage includes the Apollo 11 space flight which landed the first two people on the Moon.

2/2 • Apollo Back to the Moon • 2019 • Astronomy

90:32

Using one single, unbroken shot, Journey to the Edge of the Universe explores what we would find if we were able to travel the entire length of our universe.

Astronomy

21:29

Is it possible that there is a hidden planet within our own solar system? New evidence suggests that the fabled Planet X, or Planet 9, may indeed exist… but where? Meet the teams racing to discover and redefine our planetary neighborhood.

Breakthrough • 2020 • Astronomy

10:49

Venus is a gorgeous naked-eye planet, hanging like a diamond in the twilight -- but it’s beauty is best looked at from afar. Even though Mercury is closer to the sun, Venus is the hottest planet in the solar system, due to a runaway greenhouse effect, and has the most volcanic activity in the solar system. Its north and south poles were flipped, causing it to rotate backwards and making for very strange days on this beautiful but inhospitable world.

14 • Crash Course Astronomy • Astronomy

12:12

Twenty years after its launch, we bid farewell to the Cassini spacecraft as it plunges into Saturn’s atmosphere in a planned death spiral. Productive right to the end, Cassini has rewritten the textbook on not only Saturn and its moons, but our whole solar system as well.

1 • Science Breakthroughs • 2017 • Astronomy

4:30

Humanity's first steps on the Moon.

8/10 • The Sagan Series • 1989 • Astronomy