17,000 miles is plenty close when you're talking about a 150-foot asteroid hurtling past Earth.
It's the closest known fly-by of a rock that big but still, it wasn't visible to the naked eye.
Astronomers say it's just a coincidence that the fly-by came on the same day that a meteor exploded above Russia's Ural Mountains.
Russians who went to their windows to see what caused the big flash of light were injured when a shock wave from the meteor caused windows in thousands of buildings to shatter.
In Savannah Friday night, people said they were alarmed to wake up and see the video from Russia.
"Initially, I was afraid because I didn't know what was going to happen. I was amazed when I was watching it," Annie Price said at City Market Friday night.
Her friends say it also scared them.
"It was way too close for comfort. Very scared," Brenda Murdoff said.
Scientists say this sort of fly-by happens about once per century.
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