Alien Worlds: The Search for Second Earth • 2021 • episode "S1E2" • Universe BBC

59:07

Richard Hammond takes on the ultimate engineering project. How on earth do you make a planet, or a solar system, a galaxy or even... a universe? To find out, he opens up his cosmic toolbox and builds each one piece by piece, from the top of an impossibly high tower. What does he need to construct the cosmos, and what happens if he gets it wrong? With eye-popping computer graphics, Richard discovers that it takes an entire universe to make our planet just right for us.

S1E2 • Richard Hammond Builds... • 2013 • Astronomy

83:37

Elon Musk and experts from SpaceX and NASA are on a mission to revolutionize space exploration, and special inside access reveals how their cutting-edge spacecraft technology will carry humans to the Moon, Mars and beyond.

2020 • Astronomy

42:28

New discoveries might finally reveal how supermassive black holes are made, and using the latest technology, experts are on the verge of understanding how these monsters grow and how they affect life on our planet.

Space's Deepest Secrets • 2019 • Astronomy

53:27

The sun is our life-giving source of light, heat, and energy, and new discoveries are unraveling its epic history. Join NOVA on a spectacular voyage to discover its place in a grand cycle of birth, death and renewal that makes this the age of stars.

S1E1 • Nova: Universe Revealed • 2021 • Astronomy

54:39

Could Mars have ever harbored life? Thanks to NASA's latest Mars rover Curiosity, scientists are finding clues to this profound question. This program tracks the first year of Curiosity's adventure, and confirms that an ancient environment could have supported life on Mars.

2 • Cosmic Front • 2014 • Astronomy

60:03

Sagan discusses the story of the Heike crab and artificial selection of crabs resembling samurai warriors, as an opening into a larger discussion of evolution through natural selection (and the pitfalls of intelligent design). Among the topics are the development of life on the Cosmic Calendar and the Cambrian explosion; the function of DNA in growth; genetic replication, repairs, and mutation; the common biochemistry of terrestrial organisms; the creation of the molecules of life in the Miller-Urey experiment; and speculation on alien life (such as life in Jupiter's clouds). In the Cosmos Update ten years later, Sagan remarks on RNA also controlling chemical reactions and reproducing itself and the different roles of comets (potentially carrying organic molecules or causing the Cretaceous–Paleogene extinction event).

2/13 • Cosmos: A Personal Voyage • 1980 • Astronomy