(cont'd from yesterday's post)
If successful today (about 3:55 pm EST), this will be the ninth time that the U.S. has landed on Mars.
Yesterday NASA scientists answered media questions in a live format. They stressed the sheer complexity of the landing. Two million lines of software will be running, and 70 pyrotechnic devices. A hundred scientists will be working from their homes to manage it.
Then there's the parachute. At 70 feet in diameter, it must open in 0.6 seconds while traveling through the Mars atmosphere at Mach 2.
Watch live coverage today at NASA Live starting at 2:15 p.m. EST.
(cont'd tomorrow)
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