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| A new James Webb Space Telescope view of Jupiter shows the planet's faint silver rings, glowing aurora and shimmery storms. Two moons are visible to the planet's left: Amalthea, the bright glowing dot, and Adrastea, the bright spot that appears to be at the apex of the planet's rings. (Image credit: NASA, ESA, CSA, Jupiter ERS Team; image processing by Ricardo Hueso (UPV/EHU) and Judy Schmidt.) |
Jupiter glows with polar lights and shimmering clouds in new imagery from
the James Webb Space Telescope (JWST).
NASA released the sharp new pictures Monday (Aug. 22). The images are
composites from several different wavelengths of light. In some of the new
images, two of the planet's moons, Amalthea and Adrastea, sparkle in the gas
giant's orbit, and Jupiter's faint rings glow like a halo. At the planet's
North and South poles, the northern and southern lights glow with a pale
fire.
"We hadn't really expected it to be this good, to be honest," planetary
astronomer Imke de Pater, professor emerita of the University of California,
Berkeley, who co-led the observations of Jupiter, said in a statement. "It's
really remarkable that we can see details on Jupiter together with its
rings, tiny satellites, and even galaxies in one image."
The images come courtesy of NASA's newest space-based telescope, which has
already wowed the world with psychedelic images of far-flung galaxies. The
JWST is operated primarily by NASA, in partnership with the European Space
Agency (ESA) and Canadian Space Agency (CSA). The photos of Jupiter, part of
an observation effort led by de Pater and Thierry Fouchet, a professor at
the Paris Observatory, showcase what the space telescope can do closer to
home.
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| A composite image of Jupiter from red, yellow-green, and cyan filters, courtesy the James Webb Space Telescope. The Great Red Spot appears white because the huge storm's clouds reflect the sunlight. (Image credit: NASA, ESA, CSA, Jupiter ERS Team; image processing by Judy Schmidt.) |
The Near-Infrared Camera (NIRCam) on the telescope captured the images,
which were then converted to color visible to the human eye. The longest
wavelengths are visible in red, while shorter wavelengths are blue. The
planet's Great Red Spot, a centuries-old storm so big it could engulf Earth,
appears white due to reflected sunlight, as do other high-altitude clouds.
Dark lines indicate little cloud cover.
"The brightness here indicates high altitude — so the Great Red Spot has
high-altitude hazes, as does the equatorial region," Heidi Hammel, Webb
interdisciplinary scientist for solar system observations and vice president
for science at the Association of Universities for Research in Astronomy
(AURA), said in the statement. "The numerous bright white 'spots' and
'streaks' are likely very high-altitude cloud tops of condensed convective
storms."
Just as on Earth, particles from the sun interact with Jupiter's upper
atmosphere to create light shows called auroras. These auroras are visible
at both the northern and southern poles of Jupiter in the new images.
The incredible views were lined up by Judy Schmidt, a citizen scientist with
no formal training in astronomy who has been processing astronomy images as
a hobby for more than a decade. Because the data that comes in from
telescopes like the JWST comes in the form of numbers, not pictures, image
processors must translate the data to make sense to the human eye. For
instance, Schmidt had to stack imagery from JWST to account for Jupiter's
rapid rotation (the enormous planet does a complete rotation once every 10
hours). The result sums up the gas giant at a glance, Fouchet said in the
statement.
Originally published on Live Science.
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Space & Astrophysics