From Earth to the Universe Documentary – When We Left Earth – Voyage Through Space and Time

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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When We Left Earth Documentary – From Earth to the Universe – Voyage Through Space and Time

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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From Earth to the Universe – Voyage Through Space and Time – When We Left Earth Documentary

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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What If We Move the Earth to a New Orbit

Did you know that the Earth’s orbit isn’t a circle, but an oval-shaped ellipse? And the length of the day is actually not 24 but 23.93 hours. We, humans, take these facts for granted. But what if one day, we had to move the entire planet to a completely new orbit and change the existing order?

Before we figure out if there’s any way to push our planet out of its orbit, let’s find out why we might need to do so! The thing is that our doomsday is approaching. Even if the planet doesn’t get overheated due to global warming, the sun will finish it off… But don’t be scared, it’s not happening tomorrow.

Other videos you might like:
The Solar System Is Not Like You Think It Is
A Potentially Habitable Super Earth Has Been Discovered
A Journey to the End of the Universe

TIMESTAMPS:
Why the sun is our planet’s biggest enemy ☀️ 0:46
Can we migrate to another planet? 2:29
Is moving the Earth to a new orbit possible❓ 3:33
Possible solutions:
– A mega-strong and long lasso 4:20
– A gigantic light sail 5:22
– Electric thrusters 5:58
What would happen if we could do that 7:49

#future #Earth #brightside

SUMMARY:
– The star is getting hotter and hotter as the centuries pass. And one day, about 5 billion years from now, the sun will inevitably turn into a swollen red giant. About 2 billion years later, the sun will swallow the Earth.
– Long before that, in about 1 billion years, the sun will have already grown more than 11% brighter. It’ll make the average temperature on Earth rise to at least 120 degrees F.
– Even this increase in temperature will lead to the World Ocean getting dramatically warmer. The water will start to evaporate like it does when you leave a pot of water in the sun.
– The hydrogen, which is a crucial building material for all kinds of living cells, will slowly but surely leak into space.
– If our descendants want to stay alive, they’ll have to migrate to another planet or maybe even galaxy!
– It’d still take thousands of years to deliver all the Earth’s inhabitants to their new home. Also, it’d take unimaginable amounts of fuel – even if people flew no further than to another planet in the Solar System.
– That’s why another option will likely come into play: people will have to change the orbit of the planet before the disaster strikes to avoid the tragic outcome!
– Scientists have even calculated that to keep leading a comfortable life (or at least survive), people would have to change the orbit of the planet so that it’s 9.5% further from the sun than it is now.
– At first, a mega-strong and long lasso may seem to be the simplest solution.
– But where can you find a material strong enough to carry the weight of the whole planet? Besides, how can you be sure that this asteroid will take you exactly where you need to get?
– Maybe an effective way out would be moving the planet out of its orbit with the help of a gigantic light sail?
– But once people calculate all the details, they’ll find out that the reflective disk of the light sail would have to be more than 19 times bigger than the diameter of the planet!
– An electric thruster could become a cool alternative, especially if we talk about ion drives! Come to think of it, this method could work out! And if people managed this unprecedented feat and DID change the orbit of the planet as planned, there’d be some noticeable changes.
– Our planet’s orbital speed would drop down from 18.6 to 17.7 miles per second.

Music by Epidemic Sound

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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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How Galaxies Are Born – Star and Galaxy Formation in the Early Universe

The very first stars likely formed when the Universe was about 100 million years old, prior to the formation of the first galaxies. … This started the cosmic chemical enrichment that led to the formation of the stars that we see in the Milky Way today, to rocky planets and eventually humans.

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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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The New Solar System: What We Know So Far – The Discovery of Planets outside the Solar System

In 2014, a tiny planetesimal called 2014 MU69 and nicknamed Ultima Thule was discovered. The New Horizons spacecraft explored it on January 1, 2019, in a quick flyby. In 2016, another possible new world was found “out there” beyond the orbit of Neptune, and there could be many more waiting to be discovered.

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