Astronaut Snaps Rare Red Sprite From Space, Boosting Atmospheric Phenomenon Research

NASA astronaut Nichole Ayers has captured a stunning image of a Transient Luminous Event (TLE), also known as a "sprite," from her vantage point high above North America. The image reveals glowing red lights shimmering in Earth's upper atmosphere, a rare phenomenon triggered by thunderstorms over Mexico and the United States.

A rare red sprite, as captured by astronaut Nichole Ayers from the International Space Station.

Sprites are massive bursts of electrical energy that occur high above powerful thunderstorms, reaching up to 100 kilometers above Earth’s surface. Unlike typical lightning, they consist of “cold plasma,” similar to the glow inside a fluorescent light tube.

The fleeting nature and high altitude of sprites make them rarely visible from the ground. Astronaut Ayers shared the image on X, saying, “Just. Wow. As we went over Mexico and the U.S. this morning, I caught this sprite.”

“Sprites are TLEs or Transient Luminous Events, that happen above the clouds and are triggered by intense electrical activity in the thunderstorms below,” she further explained.

The Mystery of Sprites

For decades, pilots reported seeing these brief, jellyfish-shaped flashes, but many scientists dismissed them as optical illusions. It wasn't until 1989 that the first clear image of a sprite was accidentally captured on camera, confirming their existence.

NASA explains that sprites occur when strong lightning discharges interact with Earth’s ionosphere. The reddish glow is produced as the discharge travels upward and collides with nitrogen molecules. Sprites are part of a broader category of upper-atmosphere phenomena, including blue jets and red elves.

The image shared by Ayers has sparked both amazement and curiosity online. One user commented, “Sprite.... one of the rarest of rare celestial phenomenon.”

Another user inquired, “How long do the sprites last? Is this a still shot taken from a video? What altitude did this one reach? The more we find out, it becomes obvious we know far less than we thought.”