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CURIOSITY TOUCHDOWN 10:31PM PDT (12:31AM CDT) TONIGHT!!! August 5, 2012

Posted by jcconwell in Astronomy, planets, Space Craft.
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TONIGHT the largest rover ever to land on a planet will enter Mar’s astmosphere! Curiosity is over 5 times bigger than the previous Mar’s rover. To get the details of what is refereed to the “7 minutes of terror” , which is what the scientists call the time it takes to enter the Martian atmosphere and land, click on the NASA video below. Since Mars is 154,000,000 miles away it takes a light or radio signal 14 minutes to reach Earth. So the landing is totally controlled by the on-board computer reading the  sensors, and then adjusting the course. For the scientists waiting on Earth who have spent a good part of a decade on this mission, it will be closer to 7+14=21 minutes of terror, before they know if it is a success or a failure.

There will be a GOOGLE+ hangout event sponsored by Universe Today at http://goo.gl/a5t4O

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