Move over, Bruce Willis: NASA pushes an asteroid to test planetary defense

Move over, Bruce Willis: NASA pushes an asteroid to test planetary defense

This illustration shows the DART spacecraft approaching the two asteroids, Didymos and Dimorphos, with a small observation spacecraft nearby. Credit: NASA/Johns Hopkins APL/Steve Gribben hide caption toggle caption Credit: NASA/Johns Hopkins APL/Steve Gribben This illustration shows the DART spacecraft approaching the two asteroids, Didymos and Dimorphos, with a small observation spacecraft nearby. Credit: NASA/Johns Hopkins …

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