MARK COLVIN: The latest weather forecast on Mars is for morning fog, swift-moving clouds and light snow. NASA scientists have recorded video footage of ice crystals falling and they're very excited. Nicola Fell reports. NICOLA FELL: NASA scientists have posted the images of snow falling on Mars on their website for all of us to wonder at. David Reneke from Sky and Space magazine is enthralled. DAVID RENEKE: We can see these whitish clouds moving across the sky as we would see here on the Earth on a nice little summer's day. But it's very cold on Mars, well below zero degrees, a 100 degrees plus below zero. We're seeing the evidence of sheets of ice falling. In other words, wispy sheets, very paper, wafer thin, ice falling down but it's vaporising before it hits the ground. It's not actually landing on the ground. It's sort of...
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