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Small-Scale Question Sunday for February 12, 2023

Do you have a dumb question that you're kind of embarrassed to ask in the main thread? Is there something you're just not sure about?

This is your opportunity to ask questions. No question too simple or too silly.

Culture war topics are accepted, and proposals for a better intro post are appreciated.

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What’s going on with all the objects getting shot down over the US this weekend?

Best theory I've seen is that normally radar filters out slow-moving objects to avoid false positives. After the large balloon last week, NORAD recalibrated and went looking for slow-moving objects and found several that were real.