In a world-first, NASA will slam a spacecraft into an asteroid to test planetary defense - Interesting Engineering

NASA's dramatic DART mission aims to deflect an asteroid off course in September as a planetary defense test. Here's how you can watch it live.

NASA's DART will boost Earth's planetary defense NASA is known to livestream key moments of its big missions it did so for the first flight of its Ingenuity Mars helicopter, and it will do the same … [+1306 chars]

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