December 22, 2024
The pic was shared by NASA's Astronomy Picture of the Day last week.

As thunderstorms raged over the majestic Himalayan peaks, NASA’s satellites bore witness to a dazzling and little-understood atmospheric phenomenon – gigantic jets of lightning reaching up towards the edge of space.

The pic was shared by NASA's Astronomy Picture of the Day last week.
The pic was shared by NASA's Astronomy Picture of the Day last week.

These colossal electrical discharges, up to 50 times more powerful than a typical lightning bolt, were captured in a series of breathtaking images by NASA’s Earth observation platforms. The jets, glowing an eerie blue at their base and fading to a deep crimson at their upper reaches, stretched over 60 kilometers into the sky before dissipating into the thin air of the upper atmosphere.

A Rare and Enigmatic Sight

Gigantic jets are an exceptionally rare occurrence, first documented by scientists only in the 21st century. Unlike the familiar fork-shaped lightning we see during storms, these titanic electrical events connect the turbulent lower atmosphere to the electrically-charged ionosphere high above. 

The precise triggers and mechanics behind gigantic jets remain an active area of research for atmospheric scientists. What is clear, however, is their crucial role in maintaining the delicate electrical balance of our planet’s atmosphere. These megaflashes help to equalize charge imbalances between different layers, playing a vital part in the global atmospheric electrical circuit.

A Glimpse into the Mysteries of Our Skies

The recent Himalayan sightings offer a rare window into this little-understood phenomenon. Powerful thunderstorms over the rugged mountain terrain provided the perfect conditions for these colossal discharges to manifest, with NASA’s eagle-eyed satellites capturing the event in stunning detail.

As we continue to unravel the secrets of gigantic jets, these images stand as a testament to the awesome power and complexity of our atmosphere. They remind us that even in our modern, technology-driven world, there is still so much to discover about the natural wonders that unfold above us each day. Who knows what other atmospheric marvels await, waiting to be revealed in the skies over our planet?” make this long

The key conditions necessary for the formation of gigantic jets are:

 

1. Tall, intense thunderstorms with overshooting cloud tops reaching altitudes of 14-18 km. These storms typically form in maritime tropical environments.

 

2. A specific charge structure within the thundercloud, with a weakened upper positive charge region over a similarly sized middle negative charge region. This charge imbalance allows the negative leader to escape the cloud and propagate upwards.

 

3. Turbulent conditions at the cloud top that help weaken the upper positive charge region, enabling the negative leader to break through  

 

4. Reduced low-level temperatures combined with warmer mid-level temperatures, which can create a lower cloud base and support the development of the tall, intense thunderstorms conducive to gigantic jets [2][4].

 

In summary, the formation of gigantic jets requires a combination of favorable meteorological conditions that support the development of powerful, overshooting thunderstorms, as well as a specific electrical charge structure within the cloud that allows the negative leader to escape upwards. The turbulent mixing at cloud top plays a key role in facilitating this process.