Gift of Apollo • 1989 • episode "8/10" • The Sagan Series

44:27

On Earth and in the Universe, size matters, but it matters in different ways. In Space, bigger is not necessarily better.

Astronomy

46:55

In 2037, four years after Mars colonization, a storm threatens the outpost. In reality, Antarctica serves as a site for a simulated human settlement.

S1E4 • MARS • 2017 • Astronomy

10:49

On a cosmic time scale, human history is as brief as the blink of an eye. By compressing all 13.8 billion years of time into a 10 minute scale, this video shows just how young we truly are, and just how ancient and vast our universe is. Starting with the big bang and culminating in the appearance of homo sapiens, this experience follows the unfolding of time at 22 million years per second, adhering closely to current scientific understanding.

2018 • 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?

S1E1 • The Fermi Paradox • Astronomy

10:35

Last week we covered multiple star systems, but what if we added thousands or even millions of stars to the mix? A star cluster. There are different kinds of clusters, though. Open clusters contain hundreds or thousands of stars held together by gravity. They’re young, and evaporate over time, their stars let loose to roam space freely. Globular clusters, on the other hand, are larger, have hundreds of thousands of stars, and are more spherical. They’re very old, a significant fraction of the age of the Universe itself, and that means their stars have less heavy elements in them, are redder, and probably don’t have planets (though we’re not really sure).

35 • Crash Course Astronomy • 2015 • Astronomy

53:40

Apollo astronauts and engineers tell the inside story of how the first mission to the moon, Apollo 8, pioneered groundbreaking technologies that would pave the way to land a man on the moon and win the space race.

NOVA PBS • 2018 • Astronomy