will the earth end?

Answer 1

Certainly. The above posters are correct that the sun will possibly engulf the earth in about 5BY. If it survives that ( some experts think that the sun will not engulf the earth during the red giant expansion), when the sun ends its red giant stage the final fireworks will be intense and the earth would not survive. Nor would most of the rest of the solar system. It really doesn't matter. In something less than 1BY, perhaps as little as 100MY, the earth will be lifeless. The sun is brightening and that combined with a silicate-CO2 cycle, ensures that extinction is inevitable without some serious planetary engineering such as moving the planet away from the sun. If the republicans are still in power the earth will be a glowing cinder before they admit there is a problem.

Answer 2

Yes.

1..The Earth needs the Sun for its survival; not only as a planet but as a planet that supports life.
We know that the sun will eventually become a red giant in roughly 4.5 billion years; it will move closer to Earth's orbit, earth will become so hot even the oceans will dry and then there will be an end to life.

2..Life on earth could be destroyed by a gamma ray burst from about 100 light years away... all life on earth will be destroyed as the earth receives 100 times a fatal dose of radiation, tsunamis, cyclones occur and the ozone layer disappears.

The first is definite, the second is speculative

Answer 3

All life on Earth will end when the sun expands into a red giant star.
Whether the Earth itself survives is still being debated.

It will take about 1 billion to 1.5 billion years from the time the sun leaves the main sequence to when it is a full-blown red giant. By that time, it will have expanded enough to engulf Mercury.
The sun is constantly losing mass, and by around 6.5 billion years from now it will have lost about 18% of its mass and the Earth will have moved farther out from the sun (it will orbit around 1.17 AU instead of the 1 AU of today).
And around 6.7 billion years from now, the sun will only be 66% of its current mass, so the Earth will have moved even farther out (to about 1.6 AU). Venus will have been engulfed by then.

There is still debate as to whether the Earth will end up inside the sun's atmosphere or whether it will remain outside (the current estimate is the Earth will not be engulfed by the sun). Either way, the surface will be completely scorched and burned.

Answer 4

Yes of course it will. However, no one actually knows how it will end. There are so many possibilities, a few probabilities, bit all in all, no one truthfully knows when and how.

It could be as soon as 2036, when the astroid apophis might collide with us. It could be billions of years from now when the sun's life ends. It could be next week when aliens from a nearby galaxy decide to do us in.

My point is, there's no point to speculating to how it's going to happen. All the worrying in the world won't make a difference once whatever is going to happen, happens.

Answer 5

Earth could (though the chances are extremely remote) be destroyed by some chance event when Andromeda and Milky Way collide in 3 or so billion years!

This could occur sometime before old Sol goes 'Red Giant' on us. Approaching that event, nothing would save you from that ominous sun tan! Not even a SPF-1x10^100 lotion l!!!

Answer 6

Well, our Earth may suffer considerable damage from asteroids and what-not and we might blow ourselves up or destroy ourselves with some super bug. But, in about 5 billion years our Sun will have used up its hydrogen and will shift over to a less efficient fusing of helium. This will cause our Sun to expand and gobble up our Earth.

Answer 7

Yes.

As the other poster stated, in about 5 billion years. The sun will run out of it's fuel, and expand - engulfing Mercury, Venus, and then Earth. We'll slowly spiral down to become part of the sun's core.

Answer 8

In terms of present day thinking/theory yes it will partly due to the Sun burning its reserves up and swelling which in turn moves the safe heat boundary further into space making Earth hot up

Answer 9

Well if a really big asteroid, comet, or meteorite doesn't kill everything in the next 5 billion years the sun will expand into a red giant and fry us all.

Answer 10

Yes...When the sun expands in about 5 billion years.