Rich Boy Rob
"Fezzes are cool." The Doctor
- 1,051
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- Seen Mar 15, 2016
Civilisation or the planet?
If you are asking when will Earth die, scientists estimate that our sun has about 1,000,000,000,000 (1,000,000,000? A billion anyway) years until it expands. When that happens, unless Earth's orbit changes, it will be engulfed. Alternatively, the Earth's core could cool down causing the magnetic field to dissipate, which would in turn cause the atmosphere to be thrown off the planet (as happened to Mars) leaving Earth as a dead planet.
The end of (human) civilisation is harder to predict. We (as a species) could succumb to disease, wipe ourselves out through nuclear war (though it would be the ensuing nuclear winter, not the bombs that would wipe us out), global warming, another ice age (mind you, the last one hasn't quite ended yet), extra terrestrial invasion, a cosmic collision (comets, asteroids and the like), or we could simply evolve into another species (though civilisation may still survive through our descendants).
To ensure the continuation of civilisation, we will need to colonise other planets as Steven Hawking said in Alkaide's quote.
If you are asking when will Earth die, scientists estimate that our sun has about 1,000,000,000,000 (1,000,000,000? A billion anyway) years until it expands. When that happens, unless Earth's orbit changes, it will be engulfed. Alternatively, the Earth's core could cool down causing the magnetic field to dissipate, which would in turn cause the atmosphere to be thrown off the planet (as happened to Mars) leaving Earth as a dead planet.
The end of (human) civilisation is harder to predict. We (as a species) could succumb to disease, wipe ourselves out through nuclear war (though it would be the ensuing nuclear winter, not the bombs that would wipe us out), global warming, another ice age (mind you, the last one hasn't quite ended yet), extra terrestrial invasion, a cosmic collision (comets, asteroids and the like), or we could simply evolve into another species (though civilisation may still survive through our descendants).
To ensure the continuation of civilisation, we will need to colonise other planets as Steven Hawking said in Alkaide's quote.