Scientists studying the coded signals from the lander Phoenix on the planet’s arctic surface detected the snow falling lightly from clouds drifting across the sky some 2 1/2 miles above the spacecraft, said James Whiteway, an atmospheric scientist from York University in Canada.
“Nothing like this has ever been seen on Mars before,” he said.
Whiteway, whose team built the weather station aboard Phoenix, said the ice crystals appeared to vaporize before they reached the red Martian ground.
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