Planetary Collision Alert
- Thread starter digipeep
- Start date
How?
In about 1.5billion years apparently due to the sun earth will not be habitable as the sun will already be too big and too hot for us.
If humans are here in 1 billion years, we WILL have got to other outer solar system plants and achieved light speed travel.
Then due to galaxy collision we'll be thinking of getting out of the galaxy then after that due to universe ending we'll be thinking of trying to get to another universe.
Soldato
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Because particle movement is totally random, and hence, there is an actual chance they will move in the same direction
Soldato
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Because particle movement is totally random, and hence, there is an actual chance they will move in the same direction
And then change again so they come back down.
I heard it was going to be around dusk.
Wouldn't there come a point before impact where the planets are aligned and mavity would be low or become neutral? Depending on how close and how fast the planet is, there would be a time and place where you could jump up and keep going or just jump really high, would be a pretty wild experience before you die.
What other interesting effects could there be before impact?
I doubt galaxy collision will be much of an issue for any space based civilization, in fact i doubt it will cause much problem for planet bound ones for a long time either, its less of a collision and more of a slow merging, there would be an increased danger of things getting more chaotic in orbit and colliding, though thinking about it isn't it possible that if the two black holes collide they could create a huge gamma ray burst and kill all life? So yeah might want to leave if that happens, not like they won't have millions of years to prepare though so no rush.
What other interesting effects could there be before impact?
I doubt galaxy collision will be much of an issue for any space based civilization, in fact i doubt it will cause much problem for planet bound ones for a long time either, its less of a collision and more of a slow merging, there would be an increased danger of things getting more chaotic in orbit and colliding, though thinking about it isn't it possible that if the two black holes collide they could create a huge gamma ray burst and kill all life? So yeah might want to leave if that happens, not like they won't have millions of years to prepare though so no rush.
main reason for this is when they speed those type simulations up, the simulator stops using "perfect" figures, and rounds up or rounds down. this creates unstable orbits within lets say 1000years from the point you speed the simulation up. Within 100'000'000years you get the results shown in that video, sensationalist "Planetary collision alert" material.
if you leave the simulation going for a whole year (or more) to work out 100'000'000years the orbit wouldn't have changed hardly at all (compared to the sped up model at least).
I found this with some orbit simulation software a few years ago, the data they produce isn't right if you push them too hard.
Currently Mars is getting dragged towards Jupiter, so that's more of a "real" prediction, Mars becoming a moon of Jupiter, being broken up and becoming part of the asteroid belt or being flung out into deep space as a planet without a parent/star.
Associate
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- 23 Feb 2008
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I think they are saying it's unlikely to happen, so will only happen in a few billion years - not that it is unlikely to happen, even after billions of years.
Its quite fortunate that Earth hasn't collided with any planets already if it's however many billions of years old.
Its quite fortunate that Earth hasn't collided with any planets already if it's however many billions of years old.