Coorbital objects. . . Aliens?, probably not.
Every time a volcano goes off on earth does its ejection eventual just orbit earth as a 'distant satelitte'?
36-40, M
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ArishMell · 70-79, M
No.
The very fine particles of ash that form the huge clouds can rise very high in the atmosphere, but the heavier the particle the less high it rises from any given eruption; and none of it is ejected with sufficient force to leave Earth's gravity.
It all falls back to the ground - or sea - eventually.
The very fine particles of ash that form the huge clouds can rise very high in the atmosphere, but the heavier the particle the less high it rises from any given eruption; and none of it is ejected with sufficient force to leave Earth's gravity.
It all falls back to the ground - or sea - eventually.
ArishMell · 70-79, M
@jehova Once volcanoes started to develop, well after the initial aggregation of the planet, they might have been more violent but the Earth's mass, hence gravity, was the same as now so they would still not have thrown anything even into orbit.
If anything the Earth was accumulating more material from Space, but it has never thrown anything away by its own efforts!
If anything the Earth was accumulating more material from Space, but it has never thrown anything away by its own efforts!
jehova · 36-40, M
@ArishMell do we know that? Or is it based on the assumptions (and data) we have? "All else equal" is a huge (and probably incorrect) assumption; but 'science' does it all the time. Do "it must be true" , "as far as we know (can tell\ have measured)", and "it seems to make sense that. . . (our conlusions are)" actually mean the same thing? Or maybe we just dont know? Or that funding for more research simply ran out and everyone took the general consensus (scientifically) as irrefutable truth. These are the tough (very adult) questions we need to be asking.
ArishMell · 70-79, M
@jehova Though an interesting question there is no evidence for your idea, thanks to very simple, basic physics.
For an objects to escape a planet requires it being accelerated to that planet's escape speed (not velocity), which for the Earth if about 11.2km/s (approx. 25 000mph).
No volcanic eruption has ever been known or calculated to accelerate anything to anywhere near that speed, and once a particle of rock has left the volcano's vent it has nothing to accelerate it, but does face considerable atmospheric friction and gravity slowing its flight.
The finest particles will rise to an enormous altitude but only while still bouyant in the atmosphere, and they drift back down eventually. Larger lumps drop back close to, or on, the volcano itself.
Space rockets manage it only because they have massively powerful engines accelerating them to that speed.
I believe there is a hypothesis, perhaps even theory, that the Moon may have been formed as rock torn away from the young Earth; but by an astronomical not geological event.
For an objects to escape a planet requires it being accelerated to that planet's escape speed (not velocity), which for the Earth if about 11.2km/s (approx. 25 000mph).
No volcanic eruption has ever been known or calculated to accelerate anything to anywhere near that speed, and once a particle of rock has left the volcano's vent it has nothing to accelerate it, but does face considerable atmospheric friction and gravity slowing its flight.
The finest particles will rise to an enormous altitude but only while still bouyant in the atmosphere, and they drift back down eventually. Larger lumps drop back close to, or on, the volcano itself.
Space rockets manage it only because they have massively powerful engines accelerating them to that speed.
I believe there is a hypothesis, perhaps even theory, that the Moon may have been formed as rock torn away from the young Earth; but by an astronomical not geological event.
jehova · 36-40, M
@ArishMell once more the assumptions included in the evaluation do not seem to account for a different sized planet our assumptions are possibly errored based on incomplete data of our planets history and development. Based on what we know it is considered impossible. Do we know all conditions? No
jehova · 36-40, M
@ArishMell my additional question is if a young earth experienced a volcanic eruption the ejected matter. The matter never escaped the earth's gravity; instead formed a second mass which now orbits earth (the moon). I think that makes more sense than the astroid bouncing off or earth splitting (like an atom) theory.