So far scientists have found liquid water only on earth.That is the reason maybe life was first originated on earth. Some suspect that there may be frozen water in the perpetually shaded regions around Mercury's poles. Frozen water is also present near the poles on mars, and it is highly probable that there is an ocean on jupiter's moon "EUROPA"

              Magnetic field measurements indicate that an ocean about 100 km deep is concealed under a 1 km thick layer of ice on jupiter's moon- europa.It may be that the giant planet's gravity heats the inside of the moon by 'squeezing' it thoroughly, maintaining any water in a liquid form.The american space agency NASA is currently working on plans to send a space probe to this moon in an attempt to find out what exactly is happening there.

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