Last week, I wrote about a smallish asteroid that would be passing relatively close to—but still well away from—the Earth on Oct. 31. Hey, that’s Saturday! Yup: It’ll pass us at 17:05 UTC, when it ...
An icon in the shape of a lightning bolt. Impact Link How long does it take Earth to complete a 360-degree rotation? Not quite 24 hours, it turns out — it's precisely 23 hours and 56 minutes. But ...
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