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

112:54

This first episode begins in 1957 and tracks the early years of the space race as the United States struggles to catch up with the Soviet Union. The episode reveals breathtaking failures and successes of the nascent American space program and demonstrates the stakes and costs of reaching the moon.

1/3 • Chasing the Moon • 2019 • Astronomy

37:59

What if there was a museum that contained every type of life form in the universe? This experience takes you on a tour through the possible forms alien life might take, from the eerily familiar to the utterly exotic, ranging from the inside of the Earth to the most hostile corners of the universe.

melodysheep • 2020 • Astronomy

6:21

The universe is unbelievably big – trillions of stars and even more planets. Soo… there just has to be life out there, right? But where is it? Why don’t we see any aliens? Where are they? And more importantly, what does this tell us about our own fate in this gigantic and scary universe?

1/2 • The Fermi Paradox • Astronomy

8:29

We begin our story about 13.7 billion years ago, when all the space, matter, and energy of the known Universe was locked up in a volume less than one trillionth of the size of the point of a pen.

MinutePhysics • 2015 • Astronomy

10:40

Today Phil’s explaining the stars and how they can be categorized using their spectra. Together with their distance, this provides a wealth of information about them including their luminosity, size, and temperature. The HR diagram plots stars’ luminosity versus temperature, and most stars fall along the main sequence, where they live most of their lives.

26 • Crash Course Astronomy • 2015 • Astronomy

10:16

In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a giant ball of gas to the system of planets and other celestial objects we have today.

#9 • Crash Course Astronomy • Astronomy