A blue jet is a type of "backwards" lightning that shoots upwards from thunderstorm clouds instead of downwards. They can reach as far 50 km into the stratosphere. Many of them last less than a second. Can't imagine how much energy would hit earth if it went the other way.
This pic was taken by the international space station in 2019:
This message has been modified
Originally posted on Jul 21, 2021 at 3:43:34pm
Message modified by Division Bell on Jul 21, 2021 at 3:50:02pm