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This image shows evidence for running water on the surface of Mars.
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Image from: NASA

Martian Water

Mars doesn't seem to have very much water. If Mars had lots of water life could survive there.

There seems to be *some* water because clouds, fog, and icy polar caps are seen on Mars today. There are also dry river beds, which is evidence that in the past, water was running on the surface of Mars. So where has the water gone?

Scientists think that there is a lot of water on Mars frozen within the ground. The water flows when Mars experiences a warming change in weather. Future exploration of Mars will answer questions about exactly what has happened to the Martian water. Answers to these questions will help scientists better understand the history of Mars.

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA