Is There Sound in Space? • SciShow Space

42:43

Degrasse discusses our nearest neighboring planet Venus and its climate, the climate change on Earth and if it is caused by humans.

S1E12 • Cosmos: A Spacetime Odyssey • Astronomy

42:00

Dark Matter is thought to be the cosmic glue that holds the universe together, yet the search for it continues to elude scientists today.

S10E3 • How the Universe Works • 2021 • 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

30:25

The biggest question of our time. Are we alone? Chapter 1 of this experience takes you to alien worlds and distant places in time and space, in search of where alien life might be hiding and what our place is within the history of life. After generations of wondering, the truth is finally within our reach. New research and technologies have brought us closer than ever to an answer - only a few decades in the eyes of some NASA scientists.

melodysheep • 2020 • Astronomy

28:50

The team explores one of the greatest discoveries of modern astronomy - that our universe is expanding - and the new questions it raises about how the cosmos works.

The Sky at Night • 2025 • Astronomy

48:49

When a solar flare strikes the planet and knocks out all communications, the Olympus Town team races against the clock to locate Marta.

S2E3 • MARS • 2018 • Astronomy