Don’t look up: Close encounters of the disaster movie kind
By Gene Seymour, CNN There’s a giant rock ahead. This is not a movie. Or a drill. But don’t worry. Apparently, we’ve got this. Or at least NASA does. On Monday, the Double Asteroid Redirection Test, or DART, spacecraft is supposed to collide with Dimorphos, a small “moon” orbiting the near-Earth asteroid Didymos. NASA’s big
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