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Space & Astronomy

Rare 'luminous event' photographed from ISS

By T.K. Randall
October 11, 2021 · Comment icon 4 comments

This phenomenon is believed to be what is known as a 'blue starter'. Image Credit: ESA / NASA
An astronaut aboard the space station recently captured an image of a rare yet spectacular phenomenon.
Appearing as an enigmatic blue glow high above the Earth, this peculiar anomaly was spotted from the International Space Station by French astronaut Thomas Pesquet on October 8th.

While it might be tempting to assign blame to some paranormal occurrence, the flash is in fact a type of established phenomenon known as a transient luminous event.

Such events typically occur during thunderstorms and are triggered by lightning strikes.
One of the more spectacular examples - known as a 'blue jet' - happens when lightning propagates through the upper, negatively charged region of the thunderstorm clouds before reaching the positively charged region beneath it - producing an upwards lightning strike that appears as a brilliant blue glow.

The phenomenon in the photograph is thought to be a specific type of blue jet known as a 'blue starter' which produces a shorter, yet brighter glow.

"What is fascinating about this lightning is that just a few decades ago they had been observed anecdotally by pilots, and scientists were not convinced they actually existed," Pesquet wrote.

"Fast forward a few years and we can confirm elves, and sprites are very real and could be influencing our climate too!"

Source: Science Alert | Comments (4)

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Recent comments on this story
Comment icon #1 Posted by HandsomeGorilla 3 years ago
"Fast forward a few years and we can confirm elves, and sprites are very real and could be influencing our climate too!" uhhh...  lol jk he's talking astronomical terms
Comment icon #2 Posted by and then 3 years ago
And... Gremlins, never forget about the Gremlins...
Comment icon #3 Posted by OverSword 3 years ago
They're real
Comment icon #4 Posted by jethrofloyd 3 years ago
Isn't this from the 'Twilight Zone'? This one was a really scary episode, 

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