What is the Universe Made Of? Formula of the universe – Space Science Documentary

Composition. The Universe is composed almost completely of dark energy, dark matter, and ordinary matter. Other contents are electromagnetic radiation (estimated to constitute from 0.005% to close to 0.01% of the total mass-energy of the Universe) and antimatter.

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Alien Planet Count Passes a Thousand Documentary – What are Exoplanets and How do We Find Them

Our Milky Way Galaxy is teeming with exoplanets—statistically speaking at least one for each of the hundreds of billions of stars in the galaxy. Thousands of planets have been discovered, with thousands of more planet candidates identified. Several different planet-finding techniques have matured and contribute to our present knowledge of exoplanets. Each technique has different sensitivities that favor a planet-star separation and planet mass or size range limits. Because of the selection effect, none of the current exoplanet-finding techniques can find solar system copies. Astronomers have nonetheless found a completely unexpected diversity of exoplanets, a veritable “zoo” containing many astonishing planet types.

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Take A Journey Into The Center Of The Galaxy – How Do You Find Exoplanets?

We live in the Milky Way Galaxy, which is a collection of stars, gas, dust, and a supermassive black hole at it’s very center. Our Galaxy is a spiral galaxy, which are rotating structures that are flat (disk-like) like a DVD when looked upon edge-on. There is also a bulge in the middle that consists of mostly old stars. When you look at a spiral galaxy face-on, you can see beautiful spiral arms where stars are being born. Our solar system is in the Orion arm, and we are about 25,000 light years (2.5 X 10^17 miles) from the very center of the Galaxy.

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Tim Robbins Has Gotten Better At ‘Letting It Go’ When Leaving Set | PeopleTV | Entertainment Weekly

Tim Robbins describes what it was like on the set of the classic horror film, ‘Jacob’s Ladder.’
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Tim Robbins Has Gotten Better At ‘Letting It Go’ When Leaving Set | PeopleTV | Entertainment Weekly

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How the Universe Works Formation and Evolution of Planets in Universe – Space Discovery Documentary

Our Milky Way Galaxy was once thought to comprise the entire known universe. Today our universe encompasses many billions of galaxies, and its history can be recounted back to its earliest moments.

Our universe began with an explosion of space itself – the Big Bang. Starting from extremely high density and temperature, space expanded, the universe cooled, and the simplest elements formed. Gravity gradually drew matter together to form the first stars and the first galaxies. Galaxies collected into groups, clusters, and superclusters. Some stars died in supernova explosions, whose chemical remnants seeded new generations of stars and enabled the formation of rocky planets. On at least one such planet, life evolved to consciousness. And it wonders, “Where did I come from?”

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From Stars to Black Holes in the Universe Documentary – What are Black Holes & How Do They Form

A team of astrophysicists has discovered that supermassive black holes at the centre of galaxies aren’t just destroyers of stars, but can also be their creators.

Stellar black holes form from the collapse of a large star. They can have a mass of 20 times that of of our sun or higher, and they consume anything that gets too close, including a star.

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The Expanding Universe Documentary – Is the Universe Infinite? What We Don’t Know About The Universe

We don’t know why the universe exists: This is really quite unfair, and could be grounds for doubting that the cosmos knows what its doing. But in terms of physics, although there are some really very appealing, very promising, theoretical frameworks that begin to answer the question, the simple truth is that we’re not sure which might be right. It may be that the universe springs from an inherently unstable ‘nothingness’.

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What We Don’t Know About The Universe – The Expanding Universe Documentary

We don’t know why the universe exists: This is really quite unfair, and could be grounds for doubting that the cosmos knows what its doing. But in terms of physics, although there are some really very appealing, very promising, theoretical frameworks that begin to answer the question, the simple truth is that we’re not sure which might be right. It may be that the universe springs from an inherently unstable ‘nothingness’.

Read more