Saturday, July 30, 2011

Did you know?

Did you know that 4 billion years ago Mars probably had an atmosphere, water and the beginnings of life just like Earth?

It appears there was an asteroid a quarter the size of the planet's diameter that hit it! It was this impact that killed off Mars' magnetic field.

This asteroid impact sent a shock wave to the center and stopped the core's process of convection. This halted the magnetic field generation and literally fried the planet from the inside out. Leaving it vulnerable to the Sun's radiation.

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