It was important once, but no longer.
mars has flowing water on it
Scientist believe that the planet Mars used to have flowing liquid water. Now, the water on Mars exists almost exclusively as ice.
That is true; these gullies have been seen by Mars landers.
Only one planet, Earth, has flowing liquid water. However, liquid water may exist on Jupiter's moon Europa, under a thick outer surface of ice (up to 10 km thick). It is possible, though unconfirmed, that heat is formed from tidal friction with Jupiter's gravity, and at least some of the water is liquid.
Water on Mars can exist in three forms: liquid water, ice, and water vapor. Liquid water is rare due to the low atmospheric pressure, but there is evidence of briny water flowing seasonally on the surface. Ice is found in the polar ice caps and just beneath the surface in some areas. Water vapor is present in the atmosphere at low concentrations.
mars has flowing water on it
Not flowing water but ice
Mars and Venus might have had flowing water.
No, but there is ice in the caps.
Scientist believe that the planet Mars used to have flowing liquid water. Now, the water on Mars exists almost exclusively as ice.
there used to be. now it is frozen.
Mars.
It has long channels that may have been carved by flowing water.
Mars has evidence of erosion by water, including river valleys, channels, and minerals formed in the presence of water. Mars once had liquid water flowing on its surface, shaping the landscape over time.
NASA photographs of Mars are the best evidence that water has been flowing on Mars recently. During warmer periods in Mars' atmosphere, the photographs show streaks that look like streams. Scientists agree that this is evidence of water on Mars.
Of course, it's very important for life.
That is true; these gullies have been seen by Mars landers.