Life Beyond the Sun: Saturn • 2019 • episode "4/5" • The Planets 2019

11:09

Today Phil follows up last week’s look at the death of low mass stars with what comes next: a white dwarf. White dwarfs are incredibly hot and dense objects roughly the size of Earth. They also can form planetary nebulae: huge, intricately detailed objects created when the wind blown from the dying stars is lit up by the central white dwarf. They only last a few millennia. The Sun probably won’t form one, but higher mass stars do.

30 • Crash Course Astronomy • 2015 • Astronomy

43:00

Discovering how life on Earth came to be; the possibility that life on Earth come from another planet.

S4E5 • How the Universe Works • 2015 • Astronomy

44:06

To determine the true age of the Earth, geochemist Clair Patterson developed the uranium-lead dating method to make an unprecedented discovery - calculating Earth's age of 4.5 billion years. But Patterson's groundbreaking discoveries were just beginning. Patterson made it his mission to draw public attention to the detrimental effects of lead in the environment and dedicated his career to fighting against the petroleum and chemical industry, eventually achieving public health's biggest victory of the 20th century.

S1E7 • Cosmos: A Spacetime Odyssey • 2014 • Astronomy

57:54

The final episode shows how the unique properties of light provide an insight into the origins and development of mankind and the Universe.

4/4 • Wonders of the Universe • Astronomy

59:05

The dream of sending humans to Mars is closer than ever before. In fact, many scientists think that the first person to set foot on the Red Planet is alive today. But where should the first explorers visit when they get there? Horizon has gathered the world's leading experts on Mars and asked them where would they go if they got the chance - and what would they need to survive? Using incredible real images and data, Horizon brings these Martian landmarks to life - from vast plains to towering volcanoes, from deep valleys to hidden underground caverns. This film also shows where to land, where to live and even where to hunt for traces of extraterrestrial life.

Horizon • 2017 • Astronomy

6:20

What is dark energy? What is dark matter? Well, if we knew exactly we would have a nobel prize – we know that they exist though. So what do we know about those strange things?

In a Nutshell • 2015 • Astronomy