Last week, an astronaut on the International Space Station caught a lightning strike in Europe.But unlike most lightning, this Electric burst Not a bunch of pointed tendrils, but a big blue bubble above the mainland.
this”Transient luminescence event,” As we all know, this kind of upper atmospheric lightning was discovered in time-lapse photography taken by French astronaut Thomas Pesquet.this type The look of lightning Different from flash occurring In and under storm clouds And tend to Much larger.
There are sprites, they are vertical, super bright red or blue-green flashes; Jets, often blue, appear in the stratosphere; And elves, they are electromagnetic pulses at very high altitudes.and also Troll, They are jet-like, and other magically named luminous forms of lightning that occur above the clouds.
The colors of various phenomena are shaped by the atmosphere; on Earth, nitrogen makes the elves appear red, but on Jupiter, the atmosphere is rich in hydrogen. Will make the sprite blue.
Since 2018, ASIM experiment These forms of huge lightning were observed on the International Space Station.This is The successor to the early THOR experiment proposed by Danish astronaut Andreas Mogensen, who captured blue jets and red elves in a video in the Bay of Bengal in 2015.
These forms of lightning are very short-lived, so researchers have to review Mogensen’s shots frame by frame to find specific phenomena. Similarly, Pesquet’s photos of recent transient luminescence events were taken from longer time intervals in the night sky.
In the title new photo Publish onlinePesquet pointed out that the International Space Station is very suitable for shooting such phenomena, because it flies over the equator, where more thunderstorms will occur. As shown in the picture, this particular event suddenly appeared somewhere in southeastern Italy.
He wrote: “The fascinating thing about this kind of lightning is that just a few decades ago, pilots observed them anecdotal, and scientists didn’t believe they existed.” “Fast forward a few years and we can Confirm the elves, the elves are very real and may also affect our climate!”
More observations like this Will definitely come And reveal more about these brilliance Natural phenomena are so dazzling that they need supernatural names.