In mathematics, particularly topology, a cosmic space is any topological space that is a continuous image of some separable metric space. Equivalently (for regular T1 spaces but not in general), a space is cosmic if and only if it has a countable network; namely a countable collection of subsets of the space such that any open set is the union of a subcollection of these sets. Cosmic spaces have several interesting properties. There are a number of unsolved problems about them. (Wikipedia).
What exactly is space? Brian Greene explains what the "stuff" around us is. Subscribe to our YouTube Channel for all the latest from World Science U. Visit our Website: http://www.worldscienceu.com/ Like us on Facebook: https://www.facebook.com/worldscienceu Follow us on Twitter: https:
From playlist Science Unplugged: Physics
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From playlist Science Unplugged: Special Relativity
A01 An introduction to a series on space medicine
A new series on space medicine.
From playlist Space Medicine
Cutting-edge stories about the origins of the universe, black holes, exploding stars, the search for ET life, time and space, the solar system. Television distribution by Janson Media: http://janson.com/rights
From playlist The Solar System
Cold Storage Between Jupiter and Mars | Cosmos: A Spacetime Odyssey
Are there any mementos from when the Earth was born? ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get More Cosmos: http://bit.ly/NG-Cosmos About Cosmos: A Spacetime Odyssey: Hosted by renowned astrophysicist Neil deGrasse Tyson, COSMOS will explore how we discovered the laws of nature and
From playlist Outer Space | National Geographic
The Same Star Stuff | Cosmos: A Spacetime Odyssey
The visible cosmos is all made of the same elements. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get More Cosmos: http://bit.ly/NG-Cosmos About Cosmos: A Spacetime Odyssey: Hosted by renowned astrophysicist Neil deGrasse Tyson, COSMOS will explore how we discovered the laws of nature and
From playlist Outer Space | National Geographic
Behind the Scenes: Cosmos as a Global Journey | Cosmos: A Spacetime Odyssey
The producers discuss the tremendous amount of locations they shot across the globe to create the new look and feel of Cosmos. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get More Cosmos: http://bit.ly/NG-Cosmos About Cosmos: A Spacetime Odyssey: Hosted by renowned astrophysicist Neil de
From playlist Outer Space | National Geographic
The Clean Room: Inside Look | Cosmos: A Spacetime Odyssey
The makers of Cosmos give you a sneak peak into "The Clean Room." ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get More Cosmos: http://bit.ly/NG-Cosmos About Cosmos: A Spacetime Odyssey: Hosted by renowned astrophysicist Neil deGrasse Tyson, COSMOS will explore how we discovered the law
From playlist Outer Space | National Geographic
Are We Formed From The Stars? | Life Behind the Stars | Spark
After many years with Carl Sagan's haunting phrase echoing in his head, a scientist decides to find a link between the stars that make up our universe and life on Earth. A journey through some of the best research centres in the world looking for that amazing link between life and the rest
From playlist Documentaries To Fall Asleep To
Cosmic Rays: Messengers From A Million Light-Years Away | Cosmic Vistas | Spark
Not just another form of light, cosmic rays carry details about powerful yet unseen processes at work thousands and even millions of light-years away. Get a close look at how they are produced and what they can tell us about the universe. - Season Four of Cosmic Vistas zooms in to focus on
From playlist Cosmic Vistas Seasons 1-5
What Actually Caused The Universe To Be Born? | Cosmic Vistas | Spark
Throughout history, our nightly view of the universe has fuelled our collective imagination. When it comes to the Big Bang, not even the most creative work of imagination can rival what science has revealed about the birth of the universe. - Season Four of Cosmic Vistas zooms in to focus o
From playlist Cosmic Vistas Seasons 1-5
Intergalactic Alien Interlopers: What Are Cosmic Rays? | How the Universe Works
Stream Full Episodes of How the Universe Works: https://www.discoveryplus.com/show/how-the-universe-works From Season 10, Episode 2: Curse of the Cosmic Rays An invisible danger hurtles towards earth, at close to the speed of light. What are Cosmic Rays? Subscribe to Science Channel: htt
From playlist How the Universe Works
Seeing the Beginning of Time 4k
For more 4K space, and more great History and Science than you'll ever watch, check out our sister network... https://www.magellantv.com/featured Astronomers have begun one of the most far-reaching efforts to study the cosmos. They are building giant new telescopes, while marshaling vast
From playlist Cosmic Journeys
17/11/2015 - Mihalis Dafermos - The stability problem for black holes...
The stability problem for black holes & the cosmic censorship conjectures https://philippelefloch.files.wordpress.com/2015/11/2015-ihp-mihalisdafermos.pdf
From playlist 2015-T3 - Mathematical general relativity - CEB Trimester
Are Cosmic Strings Cracks in the Universe?
Take the Space Time Fan Survey Here: https://forms.gle/wS4bj9o3rvyhfKzUA PBS Member Stations rely on viewers like you. To support your local station, go to:http://to.pbs.org/DonateSPACE ***** Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime
From playlist The Fundamental Forces & The Standard Model
Science Bulletins: The Known Universe
The Known Universe takes viewers from the Himalayas through our atmosphere and the inky black of space to the afterglow of the Big Bang. It is a short flight through the world's most complete four-dimensional map of the Universe, the Digital Universe Atlas, which is maintained and updated
From playlist Science Bulletins