Charles Q. Choi is a contributing writer for Space.com and Live Science. He covers all things human origins and astronomy as well as physics, animals and general science topics. Charles has a Master of Arts degree from the University of Missouri-Columbia, School of Journalism and a Bachelor of Arts degree from the University of South Florida.
Jupiter is at its best and brightest of 2026 tonight! Here's what to expect as the gas giant reaches oppositionJupiter's moon Europa has an ice shell about 18 miles thick — and that could be bad news for alien lifeThe James Webb Space Telescope just mapped auroras on Uranus in 3D for the 1st time, and scientists are thrilledIn this view of a vortex near Jupiter's north pole, NASA's Juno mission observed the glow from a bolt of lightning.
Contact me with news and offers from other Future brandsSign up to our monthly entertainment newsletter to keep up with all our coverage of the latest sci-fi and space movies, tv shows, games and books.Discover this week's must-see night sky events, moon phases, and stunning astrophotos. Sign up for our skywatching newsletter and explore the universe with us!Space.com's Sci-Fi Reader's Club. Read a sci-fi short story every month and join a virtual community of fellow science fiction fans!Lightning on Jupiter may pack more than 100 times the power of Earth's bolts, and may even prove to be one million times stronger, a new study finds., the largest planet in the solar system, has correspondingly gigantic storms, with some of these lasting for centuries. Nearly every spacecraft that has passed by Jupiter to dateBased on missions that could only detect the most powerful dark-side flashes, previous research had suggested that Jupiter's lightning was similar to the highest‐energy lightning flashes on Earth, known as"superbolts." However, when NASA's Juno spacecraft began orbiting the giant planet in 2016, its star-tracking camera was sensitive enough toJupiter's moons leave cold 'footprints' in the planet's auroras, James Webb Space Telescope findsThe problem with night-side imaging of Jupiter is that its clouds can obscure the view of lightning flashes. This can make their true power difficult to estimate, explained study lead author Michael Wong, a planetary scientist at the University of California at Berkeley. In the new study, Wong and his colleagues instead analyzed data from Juno's core instrument, which could detect radio emissions from Jupiter's lightning. Such data could yield a more precise way to measure lightning power unaffected by obscuring clouds.across belts that encircle the planet. This can make it difficult to pinpoint which storm produced any lightning Juno detected. Wong compared this problem to hearing a series of pops at a Chinese New Year's parade and not knowing if it was exploding popcorn a few feet away or firecrackers a block away. However, in 2021 and 2022, there was a lull in storms in Jupiter's north equatorial belt. This let the scientists focus on just one large storm at a time, pinpointing its location using NASA's, Juno and images from amateur astronomers. Wong called these"stealth superstorms." Similar to Jupiter's true superstorms, their activity lasted for months, but unlike true superstorms, their cloud towers only reached modest heights.Breaking space news, the latest updates on rocket launches, skywatching events and more!Receive email from us on behalf of our trusted partners or sponsors Juno was close enough to four of these stealth superstorms to analyze microwaves from their lightning. "It was so gratifying to work through the statistics and see that with our Juno data, we were really capturing the majority of lightning pulses at radio wavelengths," Wong told Space.com."Before, there was some question about whether we might be catching only the strongest pulses and missing weaker ones." The flashes the researchers detected averaged three per second during these flyovers. From 613 pulses measured, they calculated they ranged in power from about that of an Earth bolt to 100 or more times more powerful.Mysterious polar weather on Jupiter and Saturn could be key to understanding their insidesThe scientists cautioned there were uncertainties in their estimates because they compared Earth lightning emissions at one radio wavelength to Jupiter emissions at a different wavelength. Jupiter's bolts may actually be a million times stronger than Earth's, they said. This artist's illustration of lightning distribution in Jupiter's northern hemisphere incorporates a photo by the JunoCam imager aboard NASA’s Juno spacecraft with artistic embellishments. Juno data indicates that most of the lightning activity on Jupiter is near its poles.Wong explained that convection on Jupiter operates differently than on Earth because air on Earth is mostly nitrogen, which is heavier than water, so moist air is more buoyant than drier air. In contrast,is dominated by hydrogen, so moist air is heavier and more difficult to loft upward. This in turn means it takes a lot more energy for a storm to rise on Jupiter, and that it unleashes a lot more energy if it does reach the top of the atmosphere, leading to high wind speeds and intense lightning. The researchers suggested that lightning on Jupiter is likely generated much like it is on Earth, with rising water vapor condensing in higher, colder altitudes into liquid drops and ice crystals that get electrically charged. However, Wong noted that it remained uncertain why Jupiter's lightning was more powerful. "Could the key difference be hydrogen versus nitrogen atmospheres, or could it be that the storms are taller on Jupiter and so there's greater distances involved?" Wong said in a. Jupiter's storms are more than 62 miles tall, compared to 6.2 miles on Earth."Or could it be that greater energy is available because with moist convection on Jupiter, you have a bigger buildup of heat needed before you can generate the storm to create lightning?" Charles Q. Choi is a contributing writer for Space.com and Live Science. He covers all things human origins and astronomy as well as physics, animals and general science topics. Charles has a Master of Arts degree from the University of Missouri-Columbia, School of Journalism and a Bachelor of Arts degree from the University of South Florida. Charles has visited every continent on Earth, drinking rancid yak butter tea in Lhasa, snorkeling with sea lions in the Galapagos and even climbing an iceberg in Antarctica. Visit him at http://www.sciwriter.usSolar SystemJupiter's moon Europa has an ice shell about 18 miles thick — and that could be bad news for alien life
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