Editor’s Note: Ed Lu is an explorer who loves mapping the unknown – whether it’s the oceans at Liquid Robotics, our neighborhoods, leading Google Advanced Projects Teams, or unveiling the secrets of the inner solar system and saving the world with the B612 Foundation, where he serves as CEO. A NASA Astronaut, he’s flown three missions, logging 206 days in space to construct and live aboard the International Space Station. Watch Ed Lu’s full plan to save the world, this Sunday 2:30 P.M. E.T. on “The Next List”
By Ed Lu, Special to CNN
Today's meteor explosion over Chelyabinsk is a reminder that the Earth orbits the Sun in a shooting gallery of asteroids, and that these asteroids sometimes hit the Earth. Later today, a separate and larger asteroid, 2012 DA14, will narrowly miss the Earth passing beneath the orbits of our communications satellites. We have the technology to deflect asteroids, but we cannot do anything about the objects we don't know exist.
Discovered just one year ago by an amateur citizen observer, 2012 DA14 will fly only 17 thousand miles above Earth – the distance the Earth travels in just 15 minutes, and not much longer than many people travel on common air flights. So this truly is a close shave. In fact, 2012 DA14 will pass underneath our communications satellites as it flies by Earth.