How many Earths are there?

NASA estimates 1 billion 'Earths' in our galaxy alone - The Washington Post.
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How many similar Earths are there?

One 2020 study that analysed Kepler data calculated that the Milky Way could harbour as many as six billion Earth-like planets, while another estimated the number of potentially habitable planets in our galaxy at about 300 million.
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Is there more Earth?

Other galaxies could be full of sibling Earths: In fact, evidence suggests there may be as many as one Earth-like planet for every five Sun-like stars in the Milky Way alone. Earth is our home, which makes it special in its own right. But there could be countless more like it waiting to be found or even born.
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Who made Earth?

When the solar system settled into its current layout about 4.5 billion years ago, Earth formed when gravity pulled swirling gas and dust in to become the third planet from the Sun. Like its fellow terrestrial planets, Earth has a central core, a rocky mantle, and a solid crust.
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What planets can humans live on?

Kepler-62e and Kepler-62f are thought capable of hosting life. The planet Kepler-69c is located about 2,700 light-years from Earth in the constellation Cygnus.
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How Many "Earth-Like" Planets Are There Really?



Is Earth the only planet with life?

Earth is the only planet in the universe known to possess life. The planet boasts several million described species, living in habitats ranging from the bottom of the deepest ocean to a few miles up into the atmosphere. Researchers think far more species remain that have yet to be described to science.
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Which planet can support life?

Meet the 7 Alien Planets Most Likely to Have Life
  • 1) Kepler 186f. Kepler 186f Via NASA/JPL-Caltech/T. ...
  • 2) Kepler 283c. Kepler 283c via Joachim Michaelis. ...
  • 3 & 4) Gliese 667C f AND 667C e. Gliese planets via University of Puerto Rico Arecibo. ...
  • 5 & 6) Kepler 62e AND Kepler 62f. ...
  • 7) Gliese 581d.
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How many universes are there?

In a new study, Stanford physicists Andrei Linde and Vitaly Vanchurin have calculated the number of all possible universes, coming up with an answer of 10^10^16.
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Can we live on Mars?

Human survival on Mars would require living in artificial Mars habitats with complex life-support systems. One key aspect of this would be water processing systems. Being made mainly of water, a human being would die in a matter of days without it.
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What planet rains diamonds?

Deep within Neptune and Uranus, it rains diamonds—or so astronomers and physicists have suspected for nearly 40 years. The outer planets of our Solar System are hard to study, however. Only a single space mission, Voyager 2, has flown by to reveal some of their secrets, so diamond rain has remained only a hypothesis.
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Can a planet be all water?

It is probably not possible for a planet to be entirely liquid. This is because a planet needs to be 'self-gravitating' so that it holds its spherical shape under gravity. It thus requires a substantial amount of mass, which means the pressure and temperature in the inner regions are usually high.
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Is there Colour in space?

Because space is a near-perfect vacuum — meaning it has exceedingly few particles — there's virtually nothing in the space between stars and planets to scatter light to our eyes. And with no light reaching the eyes, they see black.
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Who Named the Earth?

All of the planets, except for Earth, were named after Greek and Roman gods and godesses. The name Earth is an English/German name which simply means the ground. It comes from the Old English words 'eor(th)e' and 'ertha'. In German it is 'erde'.
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Why do we come to Earth?

God wanted us to come to earth to gain a physical body. Here, we face challenges and situations that help us learn and grow so we can become more like Him. God knew that we would make mistakes, so He chose Jesus to come to earth and suffer for our sins.
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Can we live on other planets?

One is the gases that are in the atmosphere. Both the atmosphere of Mars and that of Venus are mainly made of carbon dioxide. Neither planet's atmosphere contains any amounts of oxygen to speak of, which means that right now, we wouldn't be able to breathe on either planet.
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How long could you breathe on Mars?

If a person were to breathe on Mars without a spacesuit, they would pass out within 30 seconds, and they would die within a minute or two. First, their lungs would fill once, but the difference in pressure between the human lungs and the Martian air would make it very difficult for them to exhale.
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What planet can you breathe on besides Earth?

They could be kilometers in scale. You wouldn't even need hydrogen or helium. Because the atmosphere of Venus is mostly carbon dioxide, oxygen and nitrogen — ordinary breathable air — would float. The air that's holding you up is also the air that you can breathe.
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What happens if the sun dies?

Once all the helium disappears, the forces of gravity will take over, and the sun will shrink into a white dwarf. All the outer material will dissipate, leaving behind a planetary nebula. "When a star dies, it ejects a mass of gas and dust — known as its envelope — into space.
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Who named water?

The word water comes from Old English wæter, from Proto-Germanic *watar (source also of Old Saxon watar, Old Frisian wetir, Dutch water, Old High German wazzar, German Wasser, vatn, Gothic ???? (wato), from Proto-Indo-European *wod-or, suffixed form of root *wed- ("water"; "wet").
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Is Eden a planet?

Eden was an uninhabited planet in the Beta Quadrant. This planet was located along the Romulan side of the Neutral Zone.
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What is Earths nickname?

Earth has a number of nicknames, including the Blue Planet, Gaia, Terra, and “the world” – which reflects its centrality to the creation stories of every single human culture that has ever existed.
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Can you own a planet?

No, people cannot legally buy planets, at least for now. There isn't any way to legally enforce a claim to a planet, and courts have rejected similar claims in the past. International law forbids countries from claiming any celestial body, meaning a nation cannot grant space real estate to its citizens.
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