when is the earth going to end and how.?

Answer 1

Several billion years from now, our sun will turn into a red giant star. It will grow so big that it will encompass the earth's orbit, thereby swallowing the earth. That's how the earth is probably going to end.

Of course, other endings are possible too. I remember once reading a short science fiction story about the human race dismantling the earth in order to get raw materials for building more space colonies. If humanity survives long enough and technology keeps advancing, who's to say that won't happen?

Answer 2

No one knows precisely when or how. Life may well come to an end by nuclear war, or by pollution. It will likely end as the sun expands to a red giant some four to five billion years hence. I suspect the sun lacks sufficient mass to engulf the earth, though it will very likely swallow mercury and venus.

I saw a list, not long ago, of 10 ways the earth might be destroyed, and possible dates for these. One method, for example, would be to drop a big mass of antimatter onto the earth. Suppose you steered Ceres into a collision course with earth, and then twisted it through some other dimension so that it came out as antimatter. As it fell upon the earth the antimatter and a roughly equal portion of earth's matter would self annihilate, converting directly into energy. There should be enough mass to briefly outshine the sun by roughly a factor of ten, largely obliterating the earth.

Another possibility is the creation of a nanotechnological disassembler--a sort of "universal" solvent. This "Von Neumann" disassembler would reassemble the earth into a mass of self replicating molecules, and perhaps upon some preset condition or external queue boost apart.

Another possibility would be the creation of degenerate matter. Suppose twenty centuries from now some high school student drops a quantum particle of the space time continuum we refer to as a black hole. This passes through the earth again and again, acreting mass, until our planet shrinks to roughly the size of a pea, spinning really, really fast.

A few other scenarios were outlined. Suppose we discover total mass conversion, and use timed pulses to decelerate the earth so that it drops into the sun. That would be cool! (Not).

Answer 3

we can not predict the earth end accurately but there are some probability the scientist have estimated 4 Billion year the sun will finally burn its fuel and become a giant red ball it will become so hot that all the living things will extinct in earth if this is not enough the Andromeda galaxy will collide with milky way galaxy there are many asteroids and comets which can destroy earth at any time but humans had destroyed about half of the earth by their pollution

Answer 4

The Earth itself -- meaning just the planet and not the things on it -- will last beyond the time when our sun inflates to a red giant and engulfs all the inner planets, including Earth. Once that phase is over, the sun will dwindle away to a tiny white dwarf star after shedding much of its mass. That significant change in mass will throw the orbits of all the planets totally out of wack and what happens then is anybody's guess -- planets hurled outward into interstellar space, collisions between planets, etc.,.

Answer 5

Sun's fate is written.
Seen the asteroid belt between Mars and Jupiter?
That's the result of collision of massive bodies. Planet vs. planet, planet vs. huge asteroid.
Same fate might hit the earth.
But that collision happened when the solar system was young, and orbits where not so stable as today's.
Maybe we'll have to wait for our old dear Sun's death.
But till then, Long Live our Noble Sun King!

Answer 6

The earth will end in about 5 billion years when the sun reached red giant phase and goes nova.

Humans will likely be long gone by then...being wiped out by an asteroid that smacks us sometime in the next 500 years or so...possibly in 2036...

Go Apophis! Go!

Answer 7

I have heard about this on National Geographic.
According to them, our sun is burning up Hydrogen into Helium. Since helium has more volume than hydrogen, the sun is expanding. this will continue for billions of years, and eventually, the sun will get big enough to first engulf Mercury, then Venus and eventually Earth. But humans may be wiped out from the face of the earth millions of years before that by the extreme temperatures and frequent astronomical events...

Answer 8

When God decides to do it.How he will do it nobody knows.
A nun by the name of Sr.Faustina Kowalska supposedly had a vision of a sign in the sky heralding the last day.This is what she wrote in her diary what God had told her ."all light in the heavens will be extinguished and there will be great darkness over the whole earth .The sign of the cross will be seen in the sky and from the openings where the nails had been great lights will shine through lighting up the earth for a period of time .This will take place shortly before the last day."

This is not my interpretation .This is written in the nun's diary.

For those who believe no explanation is necessary .
For those who do not believe no explanation is possible.

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Answer 9

No one really knows, but in as little as 500,000,000 years, or sun may start getting hotter, and in 10 times that long, will be a red giant, but even Astronomers disagree on exact figures: we will have evolved or become extinct by then, depending largely on how we manage our planet, and may have moved off planet, in anticipation.

Answer 10

a theory states that after 5 billion yrs. the sun will burn hydrogen in such a large amount that it will grow 100 times bigger. Its gravity will increase and swallow the first three planets i.e. mercury,venus,earth.