http://t.co/wXfLsm6 O’Reilly issues a challenge to scientists: Explain how the moon got there, and why Mars doesn’t have a sun or a moon.
POSTED Sunday February 6th
http://t.co/wXfLsm6 O’Reilly issues a challenge to scientists: Explain how the moon got there, and why Mars doesn’t have a sun or a moon.
