THE WEATHER BLOG

THE BALTIMORE SUN

Jay Slater of Baltimore watched Sunday's flyover by the International Space Station. He asks: "Why does it appear much lower and brighter than airplanes also in the sky?" A clear, dark sky provides no reference points by which to judge distance. So our brains interpret brighter as closer. A gigantic space station reflecting sunlight is far brighter than aircraft lights, so the ISS - 212 miles up - seems closer.

Up-to-the-minute local data and radar at marylandweather.com

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