What would happen IF VENUS atmosphere expanded over Earths?

I just felt the need to ask. Anyone have a clue And what do you think can cause this if possible to occure?
Thanks in advance

I was considering how DENSE the atmosphere is there.

Venus is classified as a terrestrial planet and it is sometimes called Earth's "sister planet" (see below) due to the similar size, gravity, and bulk composition. Venus is covered with an opaque layer of highly reflective clouds of sulfuric acid, preventing its surface from being seen from space in visible light. Venus has the densest atmosphere of all the terrestrial planets in the solar system, consisting mostly of carbon dioxide. Venus has no carbon cycle to lock carbon back into rocks and surface features, nor does it seem to have any organic life to absorb it in biomass. A younger Venus is believed to have possessed Earth-like oceans,[11] but these evaporated as the temperature rose. Venus's surface is a dusty dry desertscape with many slab-like rocks, periodically refreshed by volcanism. The water has most likely dissociated, and, because of the lack of a planetary magnetic field, the hydrogen has been swept into interplanetary space by the solar wind.[12] The atmospheric pressure at the planet's surface is 92 times that of the Earth.

The Venusian surface was a subject of speculation until some of its secrets were revealed by planetary science in the twentieth century. It was finally mapped in detail by Project Magellan in 1990–91. The ground shows evidence of extensive volcanism, and the sulfur in the atmosphere may indicate that there have been some recent eruptions.[13][14] However, the absence of evidence of lava flow accompanying any of the visible caldera remains an enigma. The planet has few impact craters, demonstrating that the surface is relatively young, approximately 300–600 million years old.[15][16] There is no evidence for plate tectonics, possibly because its crust is too strong to subduct without water to make it less viscous. Instead, Venus may lose its internal heat in periodic massive resurfacing events.[15]

Is your question what would happen if Earths atmosphere became like venus, or if venuses actually expanded several hundred million miles and encompassed earth with the same density that it has currently?

The second is simply not going to happen. Ever. Not in this reality, anyway. The first, if it did happen, would end the vast majority of life on earth, if not all of it.

Not possible. HOw would venuses atmosphere move to earth?

What could happen is if we continue emitting greenhouse gasses and burn all the fossil fuels the earths climate could become like venus due to runaway climate change.

That's like saying: What if Earths atmosphere expanded over Venus? It just wouldn't happen.

Originally posted by CaticusMaximus
The second is simply not going to happen. Ever. Not in this reality, anyway. The first, if it did happen, would end the vast majority of life on earth, if not all of it.

I didnt say it was gonna happen. Of course a million or billion ect years. Sure. I was asking if VENUS somehow chemically changed somehow expanded its atmosphere how do you think it would effect Earth tis all no doom and gloom just science.

Thanks for your input

reply to post by Ophiuchus 13


My theory is we would under go an atmospheric change, probably not for the best either.

Originally posted by green-tree
Not possible. HOw would venuses atmosphere move to earth?

I didnt say it was possible I was asking how would it effect Earth. Also Venus has been next to SOL for a very long time 1 could consider it learned from SOL some things why being its chemical neighbor.

thanks

Originally posted by RowdyAmerican1
That's like saying: What if Earths atmosphere expanded over Venus? It just wouldn't happen.

Yes but VENUS atmosphere is more dense chemically then Earths atmosphere. Earths atmosphere not so dense so it would get thinner over distance, just sayen what if Venus atmosphere suddenly chemically changed and expanded like a STAR out ward.

Thanks

reply to post by Ophiuchus 13


The science is, it's never going to happen. Ever. No chemical change could ever possibly cause the atmosphere of Venus to even come a close to expanding over Earth. First, nothing could ever expand an atmosphere by such a ridiculously massive amount. Second, such an expanded atmosphere would cease to be Venus', as it would not be gravitational bound to Venus... it would end up floating through space as some random "cloud" of gases. Third, even if such an expanded atmosphere were possible, and if it would stay gravitationally bound to Venus, it would have to expand to the size of Earth's orbit, because Venus and Earth are not in sync, orbit-wise.

And, as has been pointed out, whether or not Earth's atmosphere could become like Venus' is a different question altogether.

Originally posted by SeattlesFinest
reply to post by Ophiuchus 13

 

My theory is we would under go an atmospheric change, probably not for the best either.

thanks for direct answer. I did read there may be life there

Most people think that the planets are close together like the model we have all seen in grade school. Venus is a golfball on the 18th hole and we are one on another golf course. Too much distance.

reply to post by earthdude


I see so you feel that the distance is enough to avoid VENUS. Thanks this has been something I have been thinking for some weeks now.

Also the planets moving has this ever been recorded in current history? And what could move them other then the SUN being moved or adjitated a lil out of its axis.

I sometimes wonder the effect of ALL the LIGHT interactions PHOTONS with the current SOL systems movements..

January 2008: Over the past few years and for the next few to come, many "signs in the sky" are developing. One of the more interesting has been the entrance of the Sun into the Photon Belt.

The Photon Belt is a stream of photons that seems to emanate from the galactic center towards the star Alcyone. Visualizing the solar system as a pancake, with the Sun at the center, the Photon Belt would be like a fork stuck through the pancake. First detected in 1961 by means of satellite-borne instruments and reported by Paul Otto Hesse, the first contact of the solar system with the Photon Belt came in 1972 when Pluto was briefly in the band. Speculation ran high of "three days of darkness" and the usual gloom-and-doom predictions when Earth first touched the edge of this band for one week in March of 1987. When the "three days of darkness" failed to happen, interest in the Photon Belt waned considerably.

The entire solar system is moving slowly sideways into the Photon Belt. As planets rotate around the Sun, they swing in and out of the band. Earth has been in the Photon Belt two additional weeks each year since 1987 as our planet approaches and leaves the spring equinox. In 1997, Earth was in the band from 12/29/97 until 6/8/98. The next year, it was there from 12/22/98 to 6/15/99. This was the first time Earth is in the band for more than half the year. In 2012, the Earth will be in this band full time, until about 4320 AD. The last time the entire solar system was in the Photon Belt was the Age of Leo, or 10,800 BC through 8640 BC.

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reply to post by Ophiuchus 13


Let's actually put those distances into perspective.
Make Venus the size of a ping pong ball... about an inch and a half wide. This would make Earth just about the same size (only a very tiny bit bigger). At this scale, the distance between the two ping pong balls - that is, Earth and Venus - would be 2700 feet at the most. At the least, this distance would become about 400 feet.
Can you imagine the atmosphere of something the size of a ping pong ball expanding to cover something between 400 and 2700 feet away?

Originally posted by CLPrime
Can you imagine the atmosphere of something the size of a ping pong ball expanding to cover something between 400 and 2700 feet away?

Yes chemical reaction like an atom being split, somewhat and the heat cause from the CHAIN REACTION. I know this distance but certain materials can travel fast depending on whats charging them up.

Thanks for the data share

reply to post by Ophiuchus 13


There's a difference, though, between the atmosphere of Venus, which is not capable of sustaining nuclear reaction, and the atmospheres of stars, which are. In order for the atmosphere of Venus to expand to envelope Earth, it needs to be able to sustain a nuclear reaction (that's what holds stars together... when this process ends, they explode and/or collapse). But, in order for the atmosphere of Venus to sustain a nuclear reaction, it needs to already be a massive ball of hydrogen. It's obviously not a massive ball of hydrogen, so such an occurrence is physically impossible.

Originally posted by CLPrime
There's a difference, though, between the atmosphere of Venus, which is not capable of sustaining nuclear reaction, and the atmospheres of stars, which are.

YES I agree.

Originally posted by CLPrime
In order for the atmosphere of Venus to expand to envelope Earth, it needs to be able to sustain a nuclear reaction (that's what holds stars together... when this process ends, they explode and/or collapse). But, in order for the atmosphere of Venus to sustain a nuclear reaction, it needs to already be a massive ball of hydrogen. It's obviously not a massive ball of hydrogen, so such an occurrence is physically impossible.

edit on 12-7-2011 by CLPrime because: (no reason given)

I totally understand your point of view from Earth current scientific understandings, and I used the atom as a example of how something can be small but chemically change during splitting to effect its surroundings from a distance. I dont hink VENUS is gonna blow at all I was just considering how the thick dense heated acidic ENERGIZING atmosphere would effect Earths atmosphere if by some way they were to encounter each other. Thats all. Like I said no doom and gloom just science.

I really wonder what it would be like on Earth if somehow Venus was chemically changed and started expanding its atmosphere. An atmosphere that has cooked under SOL for a long time.

thanks again

Besides the massive distance between the two planets when they are close, they do not orbit in parallel. So the atmosphere of venus would have to expand to cover the entire orbit of the earth. In other words, it would have to expand many times the size of the sun, and would also encompass the sun itself.