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How log will the Earth Stay?

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JasonOne

Guest
I've seen movies reflecting the end of the Earth. Based from your calculation, how long will the Earth stood still? This is quite scarry. :eek:

Thanks
 
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SpeedFreek

Guest
Hi, welcome to the SDC (space dot com) forums.

Don't you let those movies scare you! :D

It is most likely that the Earth will last around another 5,000,000,000 years, until the Sun gets old and turns into a red giant.
 
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crazyeddie

Guest
JasonOne":1mtzhiwz said:
I've seen movies reflecting the end of the Earth. Based from your calculation, how long will the Earth stood still? This is quite scarry. :eek:

Thanks
Unless human activities destabilizes our biosphere, Earth should remain habitable for at least 500 million to 1 billion years before the sun, which is slowly growing hotter, will cause a runaway greenhouse effect that will make life on this planet impossible. But assuming humanity survives that long, we may find ways of coping with the temperature increase, such as a solar shield, or even moving the planet away from the sun. Or, we could migrate to other planets in the solar system and beyond. In the meantime, relax! And welcome to Space.Com!
 
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MeteorWayne

Guest
And a small point. The earth does not stand still. It orbits around the center of mass of the earth-moon system. The earth and moon orbit around the center of mass of the solar system (which is mostly , but not all, the sun). The sun orbits around the center of mass of the galaxy. The Milky Way and the other galaxies in our local group orbit around the center of mass of the local group. Continue ad infinitum.... :)
 
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smokinghot

Guest
SpeedFreek":1iz0jxp9 said:
Hi, welcome to the SDC (space dot com) forums.

Don't you let those movies scare you! :D

It is most likely that the Earth will last around another 5,000,000,000 years, until the Sun gets old and turns into a red giant.
This, and the earth itself should still remain. Unfortunately it will be a lifeless cinder :shock:
 
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quantumnumber

Guest
I guess humans will just have to try to find another planet that could sustain human life, although that will probably be difficult.
 
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cqwest

Guest
probably for billions of years. human life will be just a small speck on the grand timeline...
 
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Cpickens89

Guest
the earth will be here for the the entire time the sun has left wich is roughly 5 billion years or so

but we'll more than likey done moved on waaaaay before that happend







our little buddy luna on the other hand he's running off ever so slowly
((sad attempt at space humer :( lol
 
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neilsox

Guest
The 5 billion years until the Sun swells to red giant may be delayed by a neutron star passing though the core of the sun, shortly before the red giant epic starts. This would push fresh hydrogen into the core and expel some of the helium, thus delaying the red giant epic. The neutron star would need to be very fast, or Earth would be perturbed into a radically different orbit. New orbit would be bad long term, if not quickly, for humans and other life forms.
Neutron stars have such high density they would be slowed little passing thought the core of a main sequence star? Sort of like a bullet passing though air instead of vacuum? The exit hole in the Sun would be much larger and a record CME = coronal mass ejection would occur, but it would likely miss Earth. Has any one done a believable computer simulation? Neil
 
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Cpickens89

Guest
i still think well have different camps(outpost) around the solor system within a couple hundred years thats pretty much forever before the sun would do anything
 
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