why is earth the only planet in the solar system with water?

Answer 1

As a matter of fact, Earth isn't the only planet in the solar system to have water.

Mars, one of our closest neighbours is thought to have water underneath its surface because some time in the past, liquid water flowed over the surface. Some parts of the planets surface are still covered in channels that were carved by by these ancient rivers.
Mars also has two poles; North and South that are covered in water ice and carbon dioxide frost.

Jupiter has approximately 63 moons. One of the most famous of these moons; Europa, is completely covered in ice. Because the surface of these ice sheets is constantly shifting and changing, it is thought that there is vast ocean of liquid water underneath, probably heated by underwater volcanoes and insulated by the ice.
Europa's mass suggests that it contains twice as much water than our own planet.

Apart from the two examples above, water ice is also found elsewhere; comet nuclei for example, contain dirty ice. However, despite these occurrences in our solar system, Earth is the only PLANET that has the huge quantities of LIQUID water and the complicated water cycle that we are so dependant on and familiar with.

Answer 2

There is water on other planets, the moon has water, mars has water, Venus has water, as well as juptier, saturn, uranus, neptune and pluto.

If you mean liquid water, well that's just because earth is just the right distance away from the sun that's it's not to hot, or not to cold. Venus has water vapor in the atmosphere, a big part of the atmosphere is sulfuric acid and for that need water.

Jupiters moon Europa has a surface of ice, and it has long been postulated that under the ice there could be a ocean of liquid water heated by the moons internal heat.

~D

Answer 3

It has to do with the distance the Earth is from the sun and the size of the sun and heat generated. It just happens that Eatrh is the exact distance from our sun that we recieve enough warmth to keep the planetary temperature below 212 degrees F where water would boil and become gas, and on most places on our planet above 32 degrees F where water would freeze and become solid. Other planets have water, like Mars, but it is constantly frozen now at the polar caps. Mars is a little too far away or the heat from our sun is not enough to warm Mars at that distance to allow liquid water.

Answer 4

It's not...Mars has frozen water and many asteroids in the kuiper belt do too. It's just that Earth is the only place in the solar system right now with a temperature range that supports water in the liquid state

Answer 5

It is just the right distance from our sun for the temperature to be correct for liquid water to be present - Lucky Us!

Having said that there are probably other bodies in our solar system with water such as Mrs and Jupiter's Moon Europa.

Answer 6

We're not. Mars has water ice and several moons may have water underground (Io for example).

However, why do we have surface liquid water and nowhere else does.

1. We're slap bang in the middle of the goldilocks zone which means we're at the right distance from the sun. Too hot, it would evaporate, too cold it would freeze.

2. We're the right size. Any smaller and we wouldn't have the gravity to hold on to an atmosphere.

Answer 7

Many planets like Mars, Jupiter, Saturn, Neptune... all have water in either solid or gas. But not water in liquid form.

This is because the temperature, gravity, and vapor pressure, needs to be exactly like our planet for water to stay liquid.

These planets don't have the right temperatures and atmospheric environment to have Liquid water.

Answer 8

For all of the right reasons, primarily our temperature range and atmosphere. If it was a bit colder, then the ice would freeze well below freezing point and wouldn't have enough time to melt into liquid before night came again. Water is a common compound, which is why it can be on other planets, but it needs certain requirements.

Answer 9

That's not clear. There may be some water ice at Mar's poles or under the surface and a few moons are suspect of having water as is our moon in dark craters at the poles.

Answer 10

Water has actually been found on another planet. I read it in a paper a couple of months ago but I cannot remember the name of it. There is also gravity there but the gravity there is twice as much as ours.