Astronauts can glimpse pyrotechnics—but only if they get lucky.
, director of lecture demonstrations at Purdue University, whether astronauts could see fireworks from space wouldn’t actually depend on the size of the shell. Instead, it’d come down to the light intensity, which means the strength of the radiance a source produces.Pyrotechnics Guild International
. So, for the brighter or more brilliant fireworks, Smith imagines that they could probably be seen from space. But if that light output is lacking in intensity, he says, “it really wouldn’t matter how big it is or how big the spread is, it’s just not going to send light far enough that they can visually pick it up.” It’s unknown whether anyone peeped the Steamboat Springs blast from as far above as the ISS.
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