NASA's Hubble Space Telescope captures photos of dark red storms raging in Jupiter's Northern hemisphere

A picture of Jupiter snapped by Hubble on September 4th, 2021.
A photo of Jupiter snapped by NASA's Hubble Space Telescope on September 4, 2021.NASA, ESA, Amy Simon (NASA-GSFC), Michael H. Wong (UC Berkeley), Joseph DePasquale (STScI)
  • NASA's Hubble Space Telescope snapped new photos of Jupiter's turbulent surface.

  • The photos depict dark red cyclones in the gas giant's Northern hemisphere.

  • Decades-old Hubble is set to be replaced by the James Webb Space Telescope next month.

The latest photos of Jupiter, taken by NASA's Hubble Space Telescope and released Thursday show new storms in the planet's northern hemisphere — but the gas giant still holds secrets, experts say.

Each year, Hubble dedicates a few days of its precious run time to snap pictures of our solar system's outer planets.

"Jupiter's colorful appearance is due to different chemicals in the planet's atmosphere reflecting sunlight," Affelia Wibisono, a researcher at the Mullard Space Science Laboratory at University College London, told Insider.

Powerful storms can pull phosphorus, sulfur, and hydrocarbons from deep in Jupiter's atmosphere up to its cloud tops, which appear as white and brown spots, Wibisono said, adding, "This new Hubble image of Jupiter has allowed scientists to keep track of Jupiter's storms and to understand the planet's weather patterns by monitoring the color changes in its atmosphere."

Check out the highlights from Jupiter's 2021 portrait session, below:

New, dark red storms appeared in Jupiter's Northern hemisphere

Pictures from Hubble Telescope of Jupiter in 2020 and in 2021 are shown side by side.
Photos of Jupiter taken by Hubble on August 25, 2020 (left) and September 4, 2021 (right).NASA

This year, several new storms, or "barges," appeared north of the planet's equator, according to NASA.

"Barges are cloudless regions in Jupiter's atmosphere," Wibisono said. They can be difficult to see since they're usually similar in color to their surroundings, but against Jupiter's lighter North Equatorial Belt, they stand out.

arrows shows the new storms on a picture of Jupiter on 2021 taken by Hubble telescope.
Arrows show the new storms on Jupiter in photos taken by Hubble Telescope in 2020 (left) and 2021 (right).NASA/Insider

Scientists thought Jupiter's equatorial zone would change colors. It didn't.

Jupiter's equatorial band has stayed stubbornly orange, even though scientists expected this year's portrait to show it fading to its typical beige hue.

That band has turned orange-red in the past. In those instances, the color change came with bright infrared light as deep clouds cleared away. This time, that didn't happen, because new red layer was much shallower.

Mike Wong, a planetary scientist at University of California, Berkeley, thought the red layer would be weak and fading by now. "It now seems like a shallower event does not necessarily mean a shorter-duration event," he told Insider.

Side by side pictures of Jupiter taken in 2020 and 2021. Arrows indicate the equatorial zone.
Arrows point to Jupiter's equatorial zone in photos taken by Hubble in 2020 (left) and 2021 (right).NASA/Insider

Despite its name, Jupiter's 'Red Spot Jr.' is still beige

Jupiter's Great Red Spot gained a companion in 2000, a gigantic storm called Red Spot Jr., when three smaller storms merged together. It's about as big as Earth and travels eastward, in the opposite direction that the Great Red Spot moves.

"Solar ultraviolet light can cause a chemical change to some of this material that causes red spots, such as the Great Red Spot and the Red Spot Jr," Wibisono said.

noir lab jupiter hubble
Atmospheric features on Jupiter include the Great Red Spot and Red Spot Jr., shown in this photo taken by Hubble.NASA/ESA/NOIRLab/NSF/AURA/M.H. Wong and I. de Pater (UC Berkeley) et al.

When it first formed, Red Spot Jr. was called Oval BA — that is, until it turned red in 2006, prompting scientists to liken it to the Great Red Spot. Since then, however, Red Spot Jr. has reverted to a shade closer to white.

A slight darkening of the Red Spot Jr., seen in 2020, prompted scientists to suggest it was turning red again, but Thursday's photos suggest that's not the case. Instead, Red Spot Jr. remains light in color.

Decades-old Hubble is struggling. A replacement telescope is set to launch next month.

The panels of the James Webb space telescope are pictured supported by a harness behind people wearing protective suits.
NASA's James Webb Space Telescope, featuring 21.3-foot mirrors, on March 4, 2020.NASA/Northrop Grumman

It's been a tough year for Hubble, which launched in 1990.

Twice this year, the world's most powerful space telescope glitched, first in June and again in November, forcing its science instruments into hibernation.

Beleaguered Hubble also has competition. The James Webb Space Telescope features a 21.3-foot-wide, gold-plated mirror and a substantially larger field of view than its predecessor, which will allow it to peer farther into the universe. Webb is due to launch late next month.

Read the original article on Business Insider