Mars InSight: Seven Minutes to Touchdown • 2018

Category: Astronomy

The fate of the Mars InSight lander will all come down to a fiery seven-minute freefall into the Red Planet. Will it survive and reveal new insight into our planetary neighbour, or will the atmosphere of Mars prove to be too much for our new planetary explorer?

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A look at the concepts behind changing the way we travel through the space-time continuum, and how extreme speed and extreme gravity can change the rules of the game.

S8E5How the Universe Works • 2020 • Astronomy

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Beginning with the origins of the universe in the Big Bang, Sagan describes the formation of different types of galaxies and anomalies such as galactic collisions and quasars. The episodes moves further into ideas about the structure of the Universe, such as different dimensions (in the imaginary Flatland and four-dimensional hypercubes), an infinite vs. a finite universe, and the idea of an oscillating Universe (similar to that in Hindu cosmology). The search into other ideas such as dark matter and the multiverse is shown, using tools such as the Very Large Array in New Mexico. Cosmos Update shows new information about the odd, irregular surfaces of galaxies and the Milky Way perhaps being a barred spiral galaxy.

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The Wildest Weather in the Universe

Scientists have started looking to the heavens and wondering what the weather might be like on other planets. Today, we are witnessing the birth of extra-terrestrial meteorology. They began with our solar system, sending spacecraft to explore its furthest reaches, and now the latest telescopes are enabling astronomers to study planets further afield. Our exploration of the universe is revealing alien worlds with gigantic storm systems that encircle entire planets, supersonic winds and extreme temperatures. On some planets, temperatures are so hot that the clouds and rain are believed to be made of liquid lava droplets, and on other planets it is thought to rain precious stones. We thought we had extreme weather on Earth, but it turns out that it is nothing compared to what's out there.

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Galaxies, Part 1

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.

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The latest NASA missions to Mars might finally reveal if it is home to alien life, and using these brand-new discoveries, experts are rethinking everything they know about the Red Planet.

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The Lost Worlds of Planet Earth

The Ship of the Imagination embarks on a journey through space and time to grasp how the autobiography of the Earth is written in its atoms, its oceans, its continents and all living things. Later, American geologist Marie Tharp creates the first true map of Earth's ocean floor, and discovers microscopic life that exists deep beneath the ocean.

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