How radio telescopes show us unseen galaxies | Natasha Hurley-Walker

Space, the final frontier. I first heard these words when I was just six years old, and I was completely inspired. I wanted to explore strange new worlds. I wanted to seek out new life. I wanted to see everything that the universe had to offer. And those dreams, those words, they took me on […]

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How fractals can help you understand the universe | BBC Ideas

How fractals can help you understand the universe | BBC Ideas

What do galaxies, cloud formations, your nervous system, mountain ranges and coastlines all have in common? They all contain never ending patterns known as fractals. A classic example of a fractal in nature is broccoli – in that the whole stalk is a similar version of one of its branches. So cut off one piece […]

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Space Junk Around Earth

Space Junk Around Earth

For six months, astronaut Ron Garan lived and worked on the International Space Station, and he saw our world in a way few people can imagine. The Caribbean is like a glowing jewel. The Himalayas. Middle East, there’s many many really interesting beautiful places from space. The Space Station gives us the ability to explore […]

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Why the Evolutionary Epic Matters: Crash Course Big History #203

Hi, I’m Emily Graslie and welcome to Crash Course Big History. Today we’ll be discussing why the history of life on Earth is not just a distant curiosity for people who happen to be interested in dinosaurs and trilobites, but one deeply wrapped up in what it means to be human and a part of […]

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Michio Kaku: The Universe in a Nutshell (Full Presentation)

Michio Kaku: The Universe in a Nutshell (Full Presentation)

My name is Professor Michio Kaku.  I’m a professor of theoretical physics at the City University of New York and I specialize in something called string theory.  I’m a physicist. Some people ask me the question, “What has physics done for me lately?  I mean, do I get better color television, do I get better […]

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BBC Beautiful Minds – Jocelyn Bell Burnell on Truth and Understanding

BBC Beautiful Minds – Jocelyn Bell Burnell on Truth and Understanding

Through history, we have seen some theories that have stood the test of time well and some that disappeared quickly. A theory that stands the test of time well will have been prodded and poked and battered and examined from every angle and still stands up. and Einstein’s theory of relativity is one of those […]

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Why graphene hasn’t taken over the world…yet

Why graphene hasn’t taken over the world…yet

– [Cory] It may not look like it, but I’m creating one of the strongest and most versatile materials on Earth, graphene. You’ve probably heard buzz about it. Graphene made big waves back in 2004, and it’s knocked around science news ever since. – A global race for graphene. – You know, it’s not just […]

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The Fermi Paradox — Where Are All The Aliens? (1/2)

The Fermi Paradox — Where Are All The Aliens? (1/2)

Are we the only living things in the entire universe? The observable universe is about 90 billion light years in diameter. There are at least one hundred billion galaxies, each with one hundred to one thousand billion stars. Recently, we’ve learned that planets are very common too. And, there are probably trillions and trillions of […]

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