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Discoveries of new planets have revealed countless worlds much stranger than Earth. Some of these strange worlds don't have stars; others are made out of diamonds. Will we ever find a planet like Earth, or are these distant worlds stranger than fiction?
S5E9 • How the Universe Works • 2017 • Astronomy
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
Could human settlements on Mars become reality as early as 100 years from now? Artificial micro organisms created with the latest techniques in synthetic biology could be used to produce resources such as iron, energy, and food directly on the planet itself. What would this new "Earth" look like?
1 • Cosmic Front • 2014 • Astronomy
Horizon goes behind the scenes at Nasa to discover how it is preparing for its most ambitious and daring mission: to land men - and possibly women - on the surface of Mars.
Today we are talking about the life -- and death -- of stars. Low mass stars live a long time, fusing all their hydrogen into helium over a trillion years. More massive stars like the Sun live shorter lives. They fuse hydrogen into helium, and eventually helium into carbon (and also some oxygen and neon). When this happens they expand, get brighter, and cool off, becoming red giants. They lose most of their mass, exposing their cores, and then cool off over many billions of years.
29 • Crash Course Astronomy • 2015 • Astronomy
A soaring quest through the solar system’s exotic and hidden water realms, from the deep seas below the icy crust of Europa to the vast prehistoric oceans that once existed on Mars billions of years ago.
S1E4 • Space's Deepest Secrets • 2016 • Astronomy