Stephen Hawking's Favorite Places 3 • 2018

5:43

"You might have thought, as I did then, that our species would be on Mars before the century was over"

6/10 • The Sagan Series • 1989 • Astronomy

12:05

The Milky Way is our neighborhood in the universe. It’s a galaxy and there are many others out there. Galaxies contain gas, dust, and billions of stars or more. They come in four main shapes: elliptical, spiral, peculiar, and irregular. Galaxies can collide, and grow in size by eating each other.

38 • Crash Course Astronomy • 2015 • Astronomy

42:05

Across the Milky Way, galaxies are going dark, and scientists don't know why the stars are losing their shine; astronomers race against time to uncover the truth behind how galaxies are born and how they die before all of the lights go out.

Space's Deepest Secrets • 2020 • Astronomy

45:41

Ants, scorpions and fireflies provide clues for biologists to conjecture about life on exoplanet Janus, including highly adaptable pentapods.

S1E2 • Alien Worlds • 2020 • Astronomy

11:32

Now that we’ve finished our tour of the planets, we’re headed back to the asteroid belt. Asteroids are chunks of rock, metal, or both that were once part of smallish planets but were destroyed after collisions. Most orbit the Sun between Mars and Jupiter, but some get near the Earth. The biggest, Ceres is far smaller than the Moon but still big enough to be round and have undergone differentiation.

20 • Crash Course Astronomy • Astronomy

59:27

The first part, Everything, sees Professor Al-Khalili set out to discover what the universe might actually look like. The journey takes him from the distant past to the boundaries of the known universe. Along the way he charts the remarkable stories of the men and women who discovered the truth about the cosmos and investigates how our understanding of space has been shaped by both mathematics and astronomy.

S1E1 • Everything & Nothing • Astronomy