If the Earth could no longer sustain life, which planet would you suggest we move to and why?

Question

Please give as much info on why as posible.

Answer 1

Mars!

The planet Mars, like Earth, has clouds in its atmosphere and a deposits of ice.

Could it be possible to live on Mars?
Maybe. The way Mars is now, people would need space suits and pressurized buildings to live there. The atmosphere on Mars is much thinner than on the Earth, only about one percent as dense. Most of that thin air is made up of carbon dioxide. There is very little oxygen. It is also very cold. Daytime temperatures might reach above freezing only near the equator, and even there the night time temperatures would be far below zero.

It might be possible, however, to change the climate of Mars to make it more like the Earth. This planetary engineering is called "terraform". Of course it has never been tried yet, but it is an exciting idea. Some scientists think that terraform is possible, but others are skeptical.

Basically, terraform Mars would be done by putting the greenhouse effect to work for us. The greenhouse effect happens when carbon dioxide gas (CO2) acts sort of like an insulating blanket to trap heat in the atmosphere. The polar ice caps on Mars are made up of both water ice and dry ice. Dry ice is frozen carbon dioxide. The idea is to melt the polar ice caps by spreading some kind of dark dust on them. The dark coating would absorb heat from the sun, raising the temperature enough to melt the frozen carbon dioxide underneath. The CO2 would go into atmosphere, making the air denser and creating a greenhouse effect which would raise the temperature even further. Eventually, it would get warm enough to melt the frozen water in the polar caps and under the ground. This liquid water could then be used to grow plants that would further darken the surface of the planet, holding in more heat, and converting the CO2 in the air into oxygen for people to breathe.

I wouldn't start packing a suitcase yet, though. Even if it would work, terraform could take a long time. Some estimates are ten thousand years or more.

As I said, some scientists (including me) are skeptical about the whole idea. Even if it would work, could it be maintained? Would the new atmosphere be stable, or would Mars eventually change back to something like its current state? For one thing, Mars is smaller than the Earth and has weaker gravity, so it may have a problem holding a dense atmosphere of CO2 and oxygen. The big problem is that Mars lacks some important things that control our atmosphere here on Earth.

Concerns about the greenhouse effect and potential global warming on Earth have led scientists to take a closer look at what controls climate on this planet. One very important factor in maintaining our global climate is the fact that we have oceans. Roughly two thirds of the Earth's surface is covered by water. Over long periods of time the oceans control and limit the amount of CO2 in the atmosphere because of something called carbonate equilibrium. Mars has no ocean to stabilize and regulate the concentrations of gasses in its atmosphere, and there is probably not enough frozen water on the planet to create an ocean. Although there is evidence that water has flowed on the surface of Mars at some time in the past, there is no evidence that there were ever any oceans.

The presence of life itself plays a role in regulating the atmosphere of the Earth. Plants, algae and plankton use CO2, store carbon and produce oxygen on a massive scale. Plants also require nitrogen, the most abundant gas in our atmosphere. Nitrogen is lacking on Mars, and melting the ice caps would not produce it. Mars also has no ozone layer to shield its surface from the Sun's ultraviolet radiation, so plants brought from the Earth may have a hard time living there.

I also think that tectonic activity in the crust may have a very important role in maintaining our atmosphere on Earth (this is just my idea, I don't know how many other scientists would agree). Volcanoes and geothermal areas constantly pump huge volumes of gasses into our atmosphere, mostly CO2. Subduction of carbonate rock on the ocean floor recycles carbon that has been deposited in the sea. Plate tectonics may be vital in maintaining the carbon cycle and stabilizing the composition of the atmosphere on a scale of millions of years. Mars doesn't have active tectonics as far as we know, and certainly not plate tectonics like on Earth. No volcanic activity has been detected and no geothermal areas have yet been discovered. There are some huge volcanoes on the surface of Mars, but we don't know how long it has been since they were last active.

So could it be possible to live on Mars? Possibly, but probably not, at least not the way we now live on Earth. Even if we can't expect a large migration to the Red Planet, it should be possible to establish some relatively small bases there. People could probably use the ice caps as a source of water, and the carbon dioxide could be used to grow plants inside UV-protected greenhouses. The plants could produce both food and oxygen for the bases, but the bases would still have to be enclosed and pressurized for people to live there. Scientists at the bases could study the geology and climate of Mars, find clues to the planet's past, and maybe figure out some way to make terraform work.

Update:
The answer would be Mars "IF EARTH COULD NO LONGER SUSTAIN LIFE"
1.) It would take four years at the speed of light to reach the nearest star, witch has no planets!
2.) Saturn and all others past Mars are gas planets which means no land!
3.) We would die out long before we could reach a planet just to explore new ones! (Unless you can find a Stargate, or make a STAR WARS-STAR TREK type ship!

Terraform is the key to making MARS a place to support life.

Answer 2

(He Who created the seven heavens in layers. You will not find any flaw in the creation of the All-Merciful. Look again—do you see any gaps? Then look again and again. Your sight will return to you dazzled and exhausted! ) (Qur’an, 67:3-4) ( He to Whom the kingdom of the heavens and the earth belongs. He does not have a son and He has no partner in the Kingdom. He created everything and determined it most exactly. ) (Qur’an, 25:2) The term “fine-tuning,” which began to be used towards the end of the 20th century, represents this truth revealed in the verses. Over the last quarter-century or so, a great many scientists, intellectuals and writers have shown that the universe is not a collection of coincidences. On the contrary, it has an extraordinary design and order ideally suited to human life in its every detail. Many features in the universe clearly show that the universe has been specially designed to support life. The physicist Dr. Karl Giberson expresses this fact thus: In the 1960s, some physicists observed that our universe appears to have been fine-tuned for the existence of human life. 2 The British astrophysicist Professor George F. Ellis refers to this fine-tuning in these terms: Amazing fine tuning occurs in the laws that make this [complexity] possible. Realization of the complexity of what is accomplished makes it very difficult not to use the word “miraculous” without taking a stand as to the ontological status of the word. 3 Gravity: - If gravity were stronger, excessive ammonia and methane would collect in the Earth’s atmosphere, which would have a most damaging effect on life. - If it were weaker, the Earth’s atmosphere would lose excessive quantities of water, making life impossible. The Earth’s Distance from the Sun: - If this were any greater, the planet would grow very cold, the water cycle in the atmosphere would be affected, and the planet would enter an ice-age. - If the Earth were any closer to the Sun, plants would burn up, the water cycle in the Earth’s atmosphere would be irreparably damaged, and life would become impossible. The Thickness of the Earth’s Crust: - If the crust were any thicker, then an excessive amount of oxygen would be transferred to it from the atmosphere. - If it were any thinner, the resulting amount of volcanic activity would make life impossible. The Speed at which the Earth Revolves: - If this were any slower, the temperature difference between day and night would grow enormously. - If it were any faster, then atmospheric winds would reach enormous speeds, and cyclones and storms would make life impossible. The Earth’s Magnetic Field: - If this were any more powerful, very strong electromagnetic storms would arise. - If it were any weaker, then the Earth would lose its protection against the harmful particles given off by the Sun and known as solar winds. Both situations would make life impossible. The Albedo Effect (Ratio between the amount of light the Earth reflects and the amount of light that is absorbed): - If this were any greater, an ice-age would rapidly result. - If it were any less, the greenhouse effect would lead to excessive warming. The Earth would first be flooded with the melting of the glaciers, and would then burn up. The Proportion of Oxygen and Nitrogen in the Atmosphere: - If this were any greater, vital functions would be adversely accelerated. - If it were any less, vital functions would adversely slow down. The Proportion of Carbon Dioxide and Water in the Atmosphere: - If this were any greater, the atmosphere would overheat. - If it were any less, the temperature of the atmosphere would fall. The Thickness of the Ozone Layer: - If this were any greater, the Earth’s temperature would fall enormously. - If it were any less, the Earth would overheat and be defenceless against the harmful ultraviolet rays emitted by the Sun. Seismic Activity (Earthquakes): - If this were any greater, there would be constant upheaval for living things. - If it were any less, the nutrients at the sea bottom would fail to spread into the water. This would have a damaging effect on life in the seas and oceans and all living things on Earth. The Earth’s Angle of Tilt: The Earth has a 23 degree angle of inclination to its orbit. It is this inclination that gives rise to the seasons. If this angle were any greater or any less than it is now, the temperature difference between the seasons would reach extreme dimensions, with unbearably hot summers and bitterly cold winters. The Size of the Sun: A smaller star than the Sun would mean the Earth would freeze and a larger star would lead to its burning up. The Attraction between the Earth and the Moon: - If this were any greater, the powerful attraction of the Moon would have extremely serious effects on atmospheric conditions, the speed at which the Earth revolves around its own axis and on the ocean tides. - If it were any less, this would lead to extreme climate changes. These are just a few of the exceedingly sensitive balances which are essential for life on Earth to have emerged and to survive. Yet even these are sufficient to definitively reveal that the Earth and the universe could not have come into being as the result of a number of consecutive coincidences. The concepts of “fine-tuning” and the “anthropic principle” that began to be employed in the 20th century are further evidence of Allah’s creation. The harmony and proportion therein were described with magnificent accuracy fourteen centuries ago in the Qur’an.

Answer 3

There hasn't been a planet that can sustain life for a long time. If we find one, I'd suggest we move there because it can sustain life and that's what we need!
We can't move to Venus because it's atmosphere is so dense, we'd die before we'd reach the ground! Not to say that the atmosphere is poisonous.
Mars--better, but not the first choice. Mars is too cold to sustain any life for long periods of time. And the atmosphere is too thin for us to live in. When we inhale, our throats would probably freeze.
Any other planet in our solar system...too close or too far from the sun. Too cold or too hot. Gas giants: no. Storms much larger than the Earth form. No way we could live in the middle of the Big Red Spot in Jupiter if we can't survive a hurricane on Earth.
A planet has to be in the exact position to hold life, and if there's another such planet out there, it's probably already inhabited by other species and we'd be attacked or driven away. But if we were to move, I'd propose to that planet or no planet (Mars as a second choice. If people want so desperately to survive just a little bit longer.)

Answer 4

There is no planet we know of that could sustain life besides the earth.

Answer 5

I SAY PLUTO, perticularly because we probably couldnt survive on the planets around us AND we would freeze b4 we land and wouldn't awaken in the future also becuase when the sun explodes, supernova, and melts pluto we will unfreeze and we might be able to live there because of the ive that melted creating water, except no air, BUT there is more oxygen in water than air.

Answer 6

I would suggest not to move anywhere... one destroyed planet seems me just fine....

ps: if we couldn't sustain life on the Earth... how could we do it anywhere else?

Answer 7

Read the Sci-Fi novel Rama. I think thats its name. Its been so long. An alien vessel comes thru our solar system, its a big empty football like thing , and it rotates and ppl go inside and live in it. The rotation makes you stick to the walls of it like gravity and theres a whole ecosystem developed inside. Neato speedo !

Answer 8

If the Earth could no longer sustain life we'd die, since we're life and all...

Answer 9

saturn.it has that cool ring around it.it probably blocks some of the sun's dangerous uv rays.build a protective artificially-filled oxygen dome to live in.import all things and people via teleportation.if that technology still doesn't exist yet, then hopefully we'll have enough fuel to bring everything.start praying.

Answer 10

Mars, I think it's the most closest to earth, like living wise, you'd obviously need masks and oxygen tanks, but i think you could.