It was just discovered that the planet Mars has water, quite a lot of it. Water was suspected to be on Mars for many years, ever since the early telescopic discovery of the "canals," but now scientists have used radar technology to determine there's enough water on the southern polar cap to cover the planet to a depth of 36 feet.

That brings us to the next question: any fish in it?

"With a radar technique," noted a story on MSNBC yesterday, "astronomers have penetrated for the first time about 2.5 miles (nearly four kilometers) beneath the south pole's frozen surface. The data showed that nearly pure water ice lies beneath.

Discovered in the early 1970s, layered deposits of ice and dust cap the North and South Poles of Mars. Until now, the deposits have been difficult to study closely with existing telescopes and satellites."

(Scientists)"?Ķ probed the deposits with radar echo sounding, typically used on Earth to study the interiors of glaciers.

"The reflected beams revealed that 90 percent or more of the frozen polar material is pure water ice, sprinkled with dust particles. The scientists calculated that the water would form a 36-foot-deep ocean of sorts if spread over the Martian globe."