Laurel, Md--12/20/18--Andy Cheng, chief scientist at the Johns Hopkins University Applied Physics La

Laurel, Md--12/20/18--Andy Cheng, chief scientist at the Johns Hopkins University Applied Physics Laboratory (APL), is co-lead investigator on the Double Asteroid Redirection Test mission, or DART. The model is of a binary asteroid. DART is NASA's first defense mission to deflect an asteroid heading for the earth into another orbit by smashing a spacecraft into it. APL is building the system. Kim Hairston/Baltimore Sun staff.
Kim Hairston / Baltimore Sun
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