Monday, February 28, 2011

SIX MINUTES OF TERROR

The last six minutes of the flight to Mars are the most terrifying. Only an inflatable aeroshell will protect the capsule as it enters Mars atmosphere at a temperature of 4,000 degrees C and a speed of 16,000 km/hr. After the capsule's speed has been slowed, the astronauts have 90 seconds to pinpoint a safe place to land.









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