In early July 2025, NASA astronaut Nichole “Vapor” Ayers snapped a uncommon picture of an enormous crimson “sprite” phenomenon erupting above a thunderstorm, as she orbited 250 miles (400 km) above Earth. Sprites are transient, luminous columns brought on by highly effective lightning discharges far beneath. Ayers famous that having the ISS vantage makes for a “great view above the clouds” and helps scientists analyze these elusive occasions. This sprite appeared over storm clouds spanning Mexico and the southern U.S. on July 3, 2025. The sighting coincides with NASA’s Spritacular citizen-science undertaking, which crowdsources photographs of sprites and different upper-atmosphere flashes.
Rare ‘Sprite’ Phenomenon Explained
According to NASA, sprites are one of many “least understood” and most visually putting upper-atmosphere phenomena. They are transient columns of crimson gentle that flash excessive above thunderclouds, triggered by highly effective lightning strikes. Data present sprites usually type round 50 miles (80 km) altitude above Earth. These fleeting bursts take different shapes – tendrils, plumes or towering columns of crimson gentle.
In Ayers’s photograph, the sprite appears like an inverted scarlet umbrella extending into the sky. Each sprite flash lasts just a few milliseconds, so each picture supplies priceless knowledge. Observations from orbit and the bottom are steadily constructing a clearer image of those mysterious storm-driven occasions. For instance, NASA’s Juno mission even recorded sprite-like flares in Jupiter’s environment, suggesting comparable lightning processes on different worlds.
Crowdsourcing Sprites
To collect extra knowledge on sprites, NASA launched the Spritacular citizen-science undertaking. Through Spritacular, volunteers with cameras can submit photographs of upper-atmosphere flashes for analysis. The undertaking’s web site reviews over 800 volunteers from 21 international locations have uploaded about 360 sprite sightings since its 2022 launch. Each contribution helps scientists map the place and the way sprites happen. Ayers’s ISS photograph provides a priceless perspective that enhances citizen reviews.
Space.com notes that a number of ISS crew members have begun photographing sprites from orbit, bolstering the info. Spritacular principal investigator Dr. Burcu Kosar says the undertaking “will bridge the gap” between informal observers and researchers. NASA scientists say many questions on how and why sprites type “remain unanswered”, so extra photographs might quickly assist decode the thriller.
