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How the Universe Works - The Story of Earth - Space Discovery Documentary

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How the Universe Works - National Geographic The Universe part 1 - Space Discovery Documentary

How the Universe Works - National Geographic The Universe part 1 - Space Discovery Documentary

How the Universe Works - From The Big Bang To The Present Day - Space Discovery Documentary

How the Universe Works - From The Big Bang To The Present Day - Space Discovery Documentary
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How the Universe Works | Black Hole And High Energy Universe - Space Discovery Documentary

How the Universe Works - National Geographic The Universe - Space Discovery Documentary

How the Universe Works - Dark Future Of The Sun - Space Discovery Documentary
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How the Universe Works - Secret History of Mercury - Space Discovery Documentary

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The Mercury Atmosphere and Surface Composition Spectrometer (MASCS) instrument aboard NASA's MESSENGER spacecraft was designed to study both the exosphere and surface of the planet Mercury. To learn more about the minerals and surface processes on Mercury, the Visual and Infrared Spectrometer (VIRS) portion of MASCS has been diligently collecting single tracks of spectral surface measurements since MESSENGER entered Mercury orbit on March 17, 2011. The track coverage is now extensive enough that the spectral properties of both broad terrains and small, distinct features such as pyroclastic vents and fresh craters can be studied. To accentuate the geological context of the spectral measurements, the MASCS data have been overlain on the monochrome mosiac from the Mercury Dual Imaging System (MDIS), an instrument with wide- and narrow-angle cameras to map the rugged landforms and spectral variations on Mercury’s surface. Click on the image to explore the colorful diversity of surface materials in more detail!

The MESSENGER spacecraft is the first ever to orbit the planet Mercury, and the spacecraft's seven scientific instruments and radio science investigation are unraveling the history and evolution of the solar system's innermost planet. In the mission's more than four years of orbital operations, MESSENGER has acquired over 250,000 images and extensive other data sets. MESSENGER's highly successful orbital mission is about to come to an end, as the spacecraft runs out of propellant and the force of solar gravity causes it to impact the surface of Mercury near the end of April 2015.

How the Universe Works - National Geographic The Universe - Space Discovery Documentary

How many planets are in the solar system? How did it form in the Milky Way galaxy? Learn facts about the solar system’s genesis, plus its planets, moons, and asteroids.
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How the Universe Works - Are Black Holes Real - Space Discovery Documentary

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Variety isn’t just the spice of life, but a natural consequence of living in our Universe. Gravitation, obeying the same universal laws on all scales, creates clumps and clusters of matter in an enormous suite of combinations, from tenuous clouds of gas to massive stars, all assembled into galaxies, clusters, and a great cosmic web.

From our perspective on Earth, there’s an enormous amount to observe. However, we can’t see it all. When the most massive of stars die, their corpses become black holes. With so much mass in such a small volume of space, nothing — no signals of any type — can get out. We can detect the matter and light emitted around these black holes, but within the event horizon, nothing escapes. In an incredible success story for science, we’ve just successfully imaged an event horizon for the first time. Here’s what we saw, how we did it, and what we’ve learned.

How the Universe Works - National Geographic The Universe - Space Discovery Documentary

How the Universe Works - National Geographic The Universe - Space Discovery Documentary
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How the Universe Works - The Story of Earth - Space Discovery Documentary

How the Universe Works - The Story of Earth - Space Discovery Documentary
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How the Universe Works | Black Hole And High Energy Universe - Space Discovery Documentary

How the Universe Works - National Geographic The Universe - Space Discovery Documentary

How the Universe Works - Dark Future Of The Sun - Space Discovery Documentary

How the Universe Works - Blow your Mind of the Universe Part 5 - Space Discovery Documentary

The History of Earth - How Our Planet Formed - Full Documentary HD

In the very beginning of earth's history, this planet was a giant, red hot, roiling, boiling sea of molten rock - a magma ocean. The heat had been generated by the repeated high speed collisions of much smaller bodies of space rocks that continually clumped together as they collided to form this planet. As the collisions tapered off the earth began to cool, forming a thin crust on its surface. As the cooling continued, water vapor began to escape and condense in the earth's early atmosphere. Clouds formed and storms raged, raining more and more water down on the primitive earth, cooling the surface further until it was flooded with water, forming the seas.

It is theorized that the true age of the earth is about 4.6 billion years old, formed at about the same time as the rest of our solar system. The oldest rocks geologists have been able to find are 3.9 billion years old. Using radiometric dating methods to determine the age of rocks means scientists have to rely on when the rock was initially formed (as in - when its internal minerals first cooled). In the infancy of our home planet the entire earth was molten rock - a magma ocean.

Since we can only measure as far back in time as we had solid rock on this planet, we are limited in how we can measure the real age of the earth. Due to the forces of plate tectonics, our planet is also a very dynamic one; new mountains forming, old ones wearing down, volcanoes melting and reshaping new crust. The continual changing and reshaping of the earth's surface that involves the melting down and reconstructing of old rock has pretty much eliminated most of the original rocks that came with earth when it was newly formed. So the age is a theoretical age.

When Did Life on Earth Begin?

Scientists are still trying to unravel one of the greatest mysteries of earth: When did life first appear and how did it happen? It is estimated that the first life forms on earth were primitive, one-celled creatures that appeared about 3 billion years ago. That's pretty much all there was for about the next two billion years. Then suddenly those single celled organisms began to evolve into multicellular organisms. Then an unprecedented profusion of life in incredibly complex forms began to fill the oceans. Some crawled from the seas and took residence on land, perhaps to escape predators in the ocean. A cascading chain of new and increasingly differentiated forms of life appeared all over the planet, only to be virtually annihilated by an unexplained mass extinction. It would be the first of several mass extinctions in Earth's history.

Scientists have been looking increasingly to space to explain these mass extinctions that have been happening almost like clockwork since the beginning of living time. Perhaps we've been getting periodically belted by more space rocks (ie. asteroids), or the collision of neutron stars happening too close for comfort? Each time a mass extinction occurred, life found a way to come back from the brink. Life has tenaciously clung to this small blue planet for the last three billion years. Scientists are finding new cues as to how life first began on earth in some really interesting places - the deep ocean.

How the Universe Works - The Mystery of Space-Time - Space Discovery Documentary

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In physics, spacetime is any mathematical model that fuses the three dimensions of space and the one dimension of time into a single four-dimensional continuum. Spacetime diagrams can be used to visualize relativistic effects such as why different observers perceive where and when events occur differently.

Until the turn of the 20th century, the assumption had been that the three-dimensional geometry of the universe (its spatial expression in terms of coordinates, distances, and directions) was independent of one-dimensional time. However, in 1905, Albert Einstein based his seminal work on special relativity on two postulates: (1) The laws of physics are invariant (i.e., identical) in all inertial systems (i.e., non-accelerating frames of reference); (2) The speed of light in a vacuum is the same for all observers, regardless of the motion of the light source.

The logical consequence of taking these postulates together is the inseparable joining together of the four dimensions, hitherto assumed as independent, of space and time. Many counterintuitive consequences emerge: in addition to being independent of the motion of the light source, the speed of light has the same speed regardless of the frame of reference in which it is measured; the distances and even temporal ordering of pairs of events change when measured in different inertial frames of reference (this is the relativity of simultaneity); and the linear additivity of velocities no longer holds true.

Origins of the Universe 101 | National Geographic

How old is the universe, and how did it begin? Throughout history, countless myths and scientific theories have tried to explain the universe's origins. The most widely accepted explanation is the big bang theory. Learn about the explosion that started it all and how the universe grew from the size of an atom to encompass everything in existence today.
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The Birth of Planet Earth - New Documentary

The Birth of Planet Earth - New Documentary
The Birth Of Planet Earth is a short film Basically Setup On the platform Of Alternate reality and Science fiction in a way which considers the Facts of Stephen Hawkings theory to the Formation of the universe and Creates an incident Which Could possibly have caused the development of Planet Earth.
This Development accidentally triggers the negative side of Nature.

Supermassive black holes: Most Powerful Objects in the Universe - Space Discovery Documentary

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A supermassive black hole (SMBH or sometimes SBH) is the largest type of black hole, containing a mass of the order of hundreds of thousands, to billions of times, the mass of the Sun (M☉). Black holes are a class of astronomical object that have undergone gravitational collapse, leaving behind spheroidal regions of space from which nothing can escape, not even light. Observational evidence indicates that nearly all large galaxies contain a supermassive black hole, located at the galaxy's center. In the case of the Milky Way, the supermassive black hole corresponds to the location of Sagittarius A* at the Galactic Core. Accretion of interstellar gas onto supermassive black holes is the process responsible for powering quasars and other types of active galactic nuclei.
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How the Universe Works - National Geographic The Universe - Space Discovery Documentary

How the Universe Works - National Geographic The Universe - Space Discovery Documentary

The Earth is Not Alone - Space Documentary HD

U.S. space agency NASA announced the discovery of more than 200 new planets on Monday, 10 of which are believed to be about the right size and temperature to support life.

The earth is not alone
Of the 219 new suspected planets to have been discovered by NASA's Kepler telescope, 10 were found to exist in the so-called 'Goldilocks zone' of their solar system. This refers to the distance between the planet and their star, which is neither too hot nor too cold to support complex life.

The presence of liquid water on these rocky Earth-like planets is seen as a key ingredient required for the existence of life.

Are we alone? Maybe Kepler today has told us indirectly, although we need confirmation, that we are probably not alone, Mario Perez, Kepler program scientist, said at a news conference.

NASA launched the Kepler telescope in 2009 in a bid to discover whether other Earth-like planets are common or rare.

The latest identification of suspected exoplanets – planets outside our own solar system – brings the tally discovered by the Kepler telescope to 4,034. The number of worlds thought to be approximately the same size and temperature as Earth is around 50.

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How the Universe Works - DARK FUTURE OF THE SUN - Space Discovery Documentary

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Our Sun has served Earth well for almost five billion years. It’s bathed us with heat and energy. But like humans, our home star is mortal. In five billion years, it will stop nurturing its planetary offspring. The aging star will bloat out beyond the orbit of our planet incinerating all living things–including humans if we’re still around.
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How the Universe Works - The Search For a Second Earth

The Search For a Second Earth by The Science Channel. Buy How the Universe Works series on Discovery Store:

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⚠ Video information:
Serie: How the Universe Works: Season 3
Episode: 9
Network: Discovery Channel, The Science Channel
Narrator: Mike Rowe
Release date: 2014
Genre: Documentary

⚠ Video settings:
Dimension: 1280x720
Bitrate: 3500
FPS: 30
Audio: 160/48kHz

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This video is meant for entertainment and educational purposes. The Science Channel/Discovery Channel is the developer and publisher of this documentary for the purpose of copyright. All rights reserved.

How the Universe works - Strangest Things Found in Deep Space Exploration (Full Documentary Films)

The Journey to the Edge of the Universe documentary film broadcast on National Geographic and Discovery Channels. It documents a space journey from ...

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Humanity is at a crossroads! on this 2015 documentary we will try to predict what will happened in the future: Nearly half of the Amazon rainforest has been ...

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How the Universe works - Strangest Things Found in Deep Space Exploration (Full Documentary Films)

How the Universe works - Strangest Things Found in Deep Space Exploration (Full Documentary Films)

Secrets Of Earth : Hindi Documentary

Secrets Of Earth : Hindi Documentary

Earth is the third planet from the Sun and the only object in the Universe known to harbor life. According to radiometric dating and other sources of evidence, Earth formed over 4 billion years ago.[24][25][26] Earth's gravity interacts with other objects in space, especially the Sun and the Moon, Earth's only natural satellite. Earth revolves around the Sun in 365.26 days, a period known as an Earth year. During this time, Earth rotates about its axis about 366.26 times.[n 5]

Earth's axis of rotation is tilted, producing seasonal variations on the planet's surface.[27] The gravitational interaction between the Earth and Moon causes ocean tides, stabilizes the Earth's orientation on its axis, and gradually slows its rotation.[28] Earth is the densest planet in the Solar System and the largest of the four terrestrial planets.

Earth's lithosphere is divided into several rigid tectonic plates that migrate across the surface over periods of many millions of years. About 71% of Earth's surface is covered with water, mostly by oceans.[29] The remaining 29% is land consisting of continents and islands that together have many lakes, rivers and other sources of water that contribute to the hydrosphere. The majority of Earth's polar regions are covered in ice, including the Antarctic ice sheet and the sea ice of the Arctic ice pack. Earth's interior remains active with a solid iron inner core, a liquid outer core that generates the Earth's magnetic field, and a convecting mantle that drives plate tectonics.

Within the first billion years of Earth's history, life appeared in the oceans and began to affect the Earth's atmosphere and surface, leading to the proliferation of aerobic and anaerobic organisms. Some geological evidence indicates that life may have arisen as much as 4.1 billion years ago. Since then, the combination of Earth's distance from the Sun, physical properties, and geological history have allowed life to evolve and thrive.[30][31] In the history of the Earth, biodiversity has gone through long periods of expansion, occasionally punctuated by mass extinction events. Over 99% of all species[32] that ever lived on Earth are extinct.[33][34] Estimates of the number of species on Earth today vary widely;[35][36][37] most species have not been described.[38] Over 7.4 billion humans live on Earth and depend on its biosphere and natural resources for their survival. Humans have developed diverse societies and cultures; politically, the world has about 200 sovereign states.


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The End of Space and Time - The Universe & Science Documentary

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IT WAS a speech that changed the way we think of space and time. The year was 1908, and the German mathematician Hermann Minkowski had been trying to make sense of Albert Einstein’s hot new idea – what we now know as special relativity – describing how things shrink as they move faster and time becomes distorted. “Henceforth space by itself and time by itself are doomed to fade into the mere shadows,” Minkowski proclaimed, “and only a union of the two will preserve an independent reality.”

And so space-time – the malleable fabric whose geometry can be changed by the gravity of stars, planets and matter – was born. It is a concept that has served us well, but if physicist Petr Horava is right, it may be no more than a mirage. Horava, who is at the University of California, Berkeley, wants to rip this fabric apart and set time and space free from one another in order to come up with a unified theory that reconciles the disparate worlds of quantum mechanics and gravity – one the most pressing challenges to modern physics.

Since Horava published his work in January 2009, it has received an astonishing amount of attention. Already, more than 250 papers have been written about it. Some researchers have started using it to explain away the twin cosmological mysteries of dark matter and dark energy. Others are finding that black holes might not behave as we thought. If Horava’s idea is right, it …

How the Universe Works - Formation of the Solar System - Space Documentary

A massive concentration of interstellar gas and dust created a molecular cloud that would form the sun's birthplace. Cold temperatures caused the gas to clump together, growing steadily denser. The densest parts of the cloud began to collapse under its own gravity, forming a wealth of young stellar objects known as protostars. Gravity continued to collapse the material onto the infant object, creating a star and a disk of material from which the planets would form. When fusion kicked in, the star began to blast a stellar wind that helped clear out the debris and stopped it from falling inward.

Although gas and dust shroud young stars in visible wavelengths, infrared telescopes have probed many of the Milky Way Galaxy's clouds to reveal the natal environment of other stars. Scientists have applied what they've seen in other systems to our own star.

After the sun formed, a massive disk of material surrounded it for around 100 million years. That may sound like more than enough time for the planets to form, but in astronomical terms, it's an eye blink. As the newborn sun heated the disk, gas evaporated quickly, giving the newborn planets and moons only a short amount of time to scoop it up.

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