This incredibly large blue blue jet was captured by a skywatcher during a thunderstorm over the city of Campina Grande, on March 13, 2017. This kind of transient luminous event appears at the tops of powerful cumulonimbus clouds and extends to altitudes of 40-50 km. The total length of the jet can reach 20-30 km … Continue reading Giant blue jet during a thunderstorm over the city of Campina Grande, Brazil (video)