[mars] Beagle 2′s Weblog — hopefully updating with good news tomorrow morning. Landing on Mars sounds pretty difficult:‘At 2.47am on Christmas Day it will slam into the upper atmosphere at 13,000mph, creating friction that will bring the heatshield up to 1,600C, but slow the probe to about 750mph. Sensors on the tiny craft will blow off the shield and the back cover of Beagle 2 and fire a mortar to release a pilot chute, which should reduce the descent to around 200mph. A 10m parachute will then be used to drag the Beagle back to a relatively gentle 35mph. By this time, an altimeter will be measuring the distance to the ground. At 200m, it will trigger the inflation of three gas bags that will form segments around the lander and cushion its impact as it hits the deck…’
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