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'Gigantic jet' lightning over China reaches 55 miles high

'Gigantic jet' lightning isn't well understood, but could balance out the electrical charge of thunderstorms. One of the biggest ever observed was documented over China, scientists reported this week.

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A 'gigantic jet' captured above a storm in North Carolina in 2009. One of the biggest of these 'gigantic jet' lightning bursts was recorded over China in 2010, scientists report this week.

Steven Cummer / LiveScience.com

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A rare glimpse of a "gigantic jet" — a huge and mysterious burst of lightning that connects a thunderstorm with the upper atmosphere — was made over China in 2010 and was recently described by scientists.

The gigantic jet took place in eastern China on Aug. 12, 2010 — the farthest a ground-based one has ever been observed from the equator, according to the research team.

Previous jets were mainly seen in tropical or subtropical regions, but this one took place around 35 degrees latitude, about the same as the southern part of Tennessee in the United States.

"This is the first report from mainland China," lead researcher Jing Yang, an atmospheric scientist with the Chinese Academy of Sciences in Beijing, told OurAmazingPlanet. The results were recently published in the Chinese Science Bulletin.

Researchers got a good look at the storm using a variety of tools, including Doppler radar data and weather pictures in the infrared band of radiation.

The gigantic jet peaked at about 55 miles (89 kilometers) above the ground, far above the cloudtops that were measured with Doppler radar at an altitude of 11 miles (17 km). 

Yang added that her team had possibly seen another gigantic jet in the same area during a different thunderstorm, but said they needed to recheck the data to confirm.

"It's not as clear as this one if it is a gigantic jet or not," she said.

It wasn't until the last century that electrical activity above thunderclouds was scientifically proven, although rumors based on undocumented observations circulated long before that time.

These electrical discharges can take several forms, such as sprites (orange-red flashes) and blue jets, which appear as blue cones.

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