Scientists have found signs of liquid water on the surface of Mars — and not just the mere droplets they've spotted before. A study by Italian researchers detected evidence of an entire lake beneath the southern polar ice cap on the Red Planet, CNN reported Wednesday.
A radar surveyed that specific area of Mars for three years, sending pulses through the planet's surface to measure the radio waves that reflected back. Some of the data came back looking suspiciously like the lakes beneath ice sheets on Earth, like in Greenland or Antarctica. "We interpret this feature as a stable body of liquid water on Mars," the researchers concluded.
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