Jupiter’s monster storm not just wide but surprisingly deep

Space Science

This combination of images provided by NASA on Thursday, Oct. 28, 2021 shows the planet Jupiter seen by the Juno probe’s microwave radiometer, left, and in visible light, captured by the Gemini Observatory. The Great Red Spot, a storm so big it could swallow Earth, extends surprisingly deep beneath the planet’s cloud tops, scientists reported Thursday, Oct. 28, 2021. (NASA/JPL-Caltech/SwRI/MSSS; Kevin M. Gill; Gemini Observatory via AP)

MYSTERY WIRE (CAPE CANAVERAL, Fla. – AP) — Jupiter’s Great Red Spot, a storm so big it could swallow Earth, extends surprisingly deep beneath the planet’s cloud tops, scientists reported Thursday.

NASA’s Juno spacecraft has discovered that the monster storm, though shrinking, still has a depth of between 200 miles (350 kilometers) and 300 miles or so (500 kilometers.) When combined with its width of 10,000 miles (16,000 kilometers), the Great Red Spot resembles a fat pancake in new 3D images of the planet.

The mission’s lead scientist, Scott Bolton of Southwest Research Institute, said there might not be a hard cutoff at the bottom of the storm.

“It probably fades out gradually and keeps going down,” Bolton said at a news conference.

The research was published Thursday in the journal Science.

This illustration combines an image of Jupiter from the JunoCam instrument aboard NASA’s Juno spacecraft with a composite image of Earth to depict the size and depth of Jupiter’s Great Red Spot.
Credits: JunoCam Image data: NASA/JPL-Caltech/SwRI/MSSS; JunoCam Image processing by Kevin M. Gill (CC BY); Earth Image: NASA

The Great Red Spot is probably the tallest Jovian storm measured so far with Juno’s microwave and gravity-mapping instruments, Bolton said. Thousands of storms rage across the gas giant at any given time — beautiful and colorful swirls, plumes and filaments covering the entire planet, as seen by the spacecraft’s camera.

Still ahead for Juno: measuring the depth of the polar cyclones, which might penetrate even deeper beneath the clouds.

“I wouldn’t want to be too quick to guess that we’ve seen the deepest,” Bolton told reporters. “But the Great Red Spot is the largest and that makes it special by itself, and you might expect that it might be deeper just because of that.”

By contrast, some of the surrounding jet streams extend an estimated 2,000 miles (3,200 kilometers) into Jupiter.

Launched in 2011, Juno has been orbiting the solar system’s largest planet since 2016. NASA recently extended the mission by another four years, to 2025.

Copyright 2021 Nexstar Media Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

Latest Space Science Video

The Latest

Don't Miss

Latest Mystery Wire News