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Killer asteroids are hiding in plain sight. A new tool helps spot them

By Kenneth Chang
New York Times·
10 mins to read

Ed Lu wants to save Earth from killer asteroids.

Or at least, if there is a big space rock streaking our way, Lu, a former Nasa astronaut with a doctorate in applied physics, wants to find it before it hits us — hopefully with years of advance warning and a chance for humanity to deflect it.

On Tuesday, the B612 Foundation, a nonprofit group that Lu helped found, announced the discovery of more than 100 asteroids. (The foundation's name is

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