Author Topic: NASA - Juno - Updates  (Read 313737 times)

Offline Blackstar

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Re: NASA - Juno - Updates
« Reply #800 on: 02/05/2024 04:24 pm »

Offline Blackstar

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Re: NASA - Juno - Updates
« Reply #801 on: 02/05/2024 10:44 pm »

Offline eeergo

Re: NASA - Juno - Updates
« Reply #802 on: 02/06/2024 01:37 pm »
Spectrometers can image too! :) Pics from JIRAM, masterfully cleaned, aligned and animated by Landru79:

https://twitter.com/landru79/status/1754217601427726338
-DaviD-

Offline Blackstar

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Re: NASA - Juno - Updates
« Reply #803 on: 02/06/2024 02:38 pm »

Offline Blackstar

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Re: NASA - Juno - Updates
« Reply #804 on: 02/07/2024 10:35 pm »
https://www.nytimes.com/2024/02/06/science/nasa-jupiter-moon-io.html


NASA Spots Signs of Twin Volcanic Plumes on Jupiter’s Moon Io
Katrina Miller
    Feb. 6, 2024

On Saturday, NASA’s Juno orbiter got a second close-up with Io, Jupiter’s third-largest moon and the most volcanic world of our solar system.

The Juno spacecraft, which arrived at the gas giant in 2016, is on an extended mission to explore Jupiter’s rings and moons. Its latest flyby, which complemented the mission’s first close approach on Dec. 30, yielded even more views of the moon’s hellish landscape.

Io’s violent expulsions of sulfur and additional compounds give the moon its orange, yellow and blue hues. The process is similar to what happens around the volcanoes of Hawaii or the geysers in Yellowstone National Park, according to Scott Bolton, a physicist at the Southwest Research Institute who leads the Juno mission. “That must be what Io is like — on steroids,” he said. He added that it probably smells like those places, too.

« Last Edit: 02/07/2024 10:35 pm by Blackstar »

Offline Star One

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Re: NASA - Juno - Updates
« Reply #805 on: 02/12/2024 11:44 am »
Scott Manley on Juno’s recent flyby of Io:


Offline Star One

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Re: NASA - Juno - Updates
« Reply #806 on: 03/05/2024 07:00 pm »

Offline Blackstar

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Offline Star One

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Re: NASA - Juno - Updates
« Reply #809 on: 03/07/2024 11:06 pm »
Quote
A team of planetary scientists affiliated with multiple institutions in the U.S. has found a jet in Jupiter's atmosphere that fluctuates in roughly four-year periods. In their paper published in the journal Nature, the group describes how they found the jet and studied its characteristics using data from the Juno spacecraft.

https://phys.org/news/2024-03-jet-jupiter-atmosphere-fluctuate-roughly.html

Related paper:

https://www.nature.com/articles/s41586-024-07046-3

Offline Blackstar

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Re: NASA - Juno - Updates
« Reply #810 on: 03/08/2024 10:39 pm »
The LPSC conference is next week. There will be a bunch of new science results then, maybe some from Juno.

Offline Targeteer

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Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: NASA - Juno - Updates
« Reply #812 on: 03/30/2024 12:54 am »
https://www.nature.com/articles/s41550-024-02206-x

Oxygen production from dissociation of Europa’s water-ice surface

Jupiter’s moon Europa has a predominantly water-ice surface that is modified by exposure to its space environment. Charged particles break molecular bonds in surface ice, thus dissociating the water to ultimately produce H2 and O2, which provides a potential oxygenation mechanism for Europa’s subsurface ocean. These species are understood to form Europa’s primary atmospheric constituents. Although remote observations provide important global constraints on Europa’s atmosphere, the molecular O2 abundance has been inferred from atomic O emissions. Europa’s atmospheric composition had never been directly sampled and model-derived oxygen production estimates ranged over several orders of magnitude. Here, we report direct observations of H2+ and O2+ pickup ions from the dissociation of Europa’s water-ice surface and confirm these species are primary atmospheric constituents. In contrast to expectations, we find the H2 neutral atmosphere is dominated by a non-thermal, escaping population. We find 12 ± 6 kg s−1 (2.2 ± 1.2 × 1026 s−1) O2 are produced within Europa’s surface, less than previously thought, with a narrower range to support habitability in Europa’s ocean. This process is found to be Europa’s dominant exogenic surface erosion mechanism over meteoroid bombardment.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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« Last Edit: 04/16/2024 06:22 pm by Targeteer »
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Blackstar

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