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Our sun is about halfway through its life cycle. It will be a few more billion years before it becomes a red giant that will engulf the earth and kill all life on it. Then after that it will explode into a super nova and scatter all the remaining planets into interstellar dust. Our sun, called, Sol, originated from several other stars that lived out their lives and exploded into cosmic debri. After millions of years this debri condensed and formed our solar system with the sun at the center and the planets revolving around it. Unless we find a way to transport ourselves, including all aspects of nature with us to another star, all life on earth will be extinguished, forever.

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13y ago
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13y ago

The earth will die in roughly one billion years when the moon goes too far away. However, this might not happen. The most probable answer is that in five billion years the Earth will have been engulfed by the Sun.

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2y ago
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7y ago

Depends if you mean the planet Earth or life on the planet.

In about 5 billion years when the Sun turns into a red giant, the Earth will become so hot that its crust will melt. There is some debate as to whether the Sun's envelope will extend sufficiently to "boil" away the surface of the Earth, but the chances of any life surviving will be zero.

If the envelope extends sufficiently, the Earth will basically evaporate into space and will be no longer.

It all probability, based on current knowledge, the Earth as a planet will survive when the Sun dies, and will become nothing more than a cold rock orbiting a cooling white dwarf for the rest of the universes existence.
We can only speculate.

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12y ago

We will never know when the planet will "die." Some people believe that the world will end based on religious teachings, some believe it will end because of the human impact, etc. We will probably never truly know when the world will end and the planet will 'die.'

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13y ago

If anyone knew the answer to that question ...

-- don't you think everyone would have heard about it by now ?

-- do you think the person who knew it would decide to tell anyone else, or not to ?

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14y ago

Nothing. The Earth is fine, regardless of the "Chicken Littles" who proclaim that the sky is falling. The Earth frequently goes through periods of unsettled weather for a few hundred years, and we didn't cause it last time, and we didn't cause it THIS time.

Remember that out of the last million years, 900,000 of them have been ice ages. During that entire time, there wasn't enough civilization to invent writing, so we have no records of it. We look at the last 50 years of pleasant weather and think that this is what it ALWAYS is - but the only constant is change! We DON'T WANT the ice to come back, but at some point it will.

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9y ago

The Sun is one of the lower-mass stars. It passes through main sequence which it is currently in, giant star where it expands, and white dwarf. The stage where it will be impossible for life to exist on earth is the giant star. The Sun will heat up and expand. Helium will fuse into carbon, too. But don't worry, it will take about 5 billion years to be impossible for life to exist.

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9y ago

The earth is nowhere near dying. It is going through its own natural cycle of change. We may be affecting some of these cycles because of the way we're dealing with various environmental issues, but the earth is still a very dynamic living thing. Unfortunately, earth's cycles can be hundreds, thousands or millions of years long. This does pose some challenges for us humans.

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The Earth is still geologically active, but billions of years from now the Earth will cool and eventually become geologically inactive. When this occurs, the magnetosphere protecting Earth's atmosphere from the solar winds will disappear, and the planet will be stripped of surface life due to the intense bombardment of ultraviolet radiation. Further off still, the sun will eventually burn out, but first enlarging, swallowing up the inner planets in heat and flame, destroying any evidence of our existence, other than far flung spacecraft and radio and television signals.

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15y ago

Nothing is killing the Earth. What has killed off many species in the past has been asteroid or comet impacts, which caused global tsunamis and earthquakes, and threw so much vaporized rock and water into the air that it blocked out the Sun, killing many of the plants and most of the animals.

Today, many people are unnecessarily panicked about climate change, but a brief look at history tells us that the climate has ALWAYS been changing. Nothing is ever constant. Volcanoes, earthquakes, ice ages, and asteroid impacts; they all affect life on Earth. It has happened before. It _WILL_ happen again.

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15y ago

We don't know. Why is that? Let's look at what we do know and see if we can make sense of things. The sun, being a main sequence star, will burn through its nuclear fuel in stages and eventually become a red giant. The diameter of the sun will expand to completely engulf earth's orbit. But that's the currentorbit. As the sun ages, it is losing mass, and as its mass decreases, the orbits of all the planets will become larger. The planets will continue along with their same basic inertia, but there will be less gravity from old Sol to hold them in orbit. The result is that the planets will be moving in larger and larger orbits. We're not sure if the sun will reach out and burn everything on earth to a crisp before "swallowing" it, or if the earth will "make a break" and end up far, far away to finish life as a frozen ball when the sun's fire dies.

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