Concealment of Io

Contains: Solar system body or event

Concealment of Io

THE IO VOLCANISM
Four centuries after Galileo Galilei was amazed to discover four moons around Jupiter, space probes and powerful telescopes have allowed us to learn facts that would never have crossed the Italian astronomer's mind, such as the volcanic surface of Io or the subterranean oceans of Europa, Ganymede and Callisto hidden under icing. Two new missions from the European Space Agency (ESA) and NASA promise to uncover more surprises about Jupiter's moons in the next decade.
Jupiter's nearest moon, Io, at a distance of about 422,000 kilometers, is the most active body in the solar system. The cause of this geological activity is the heat created by the gravitational pull it feels when it is between the planet and the other large moons - Europa and Ganymede.
“Eruption plumes were observed by Voyager 1 , Galileo spacecraft and New Horizons . NASA's Galileo spacecraft also observed surface lava flows,” said Emma Marcucci, researcher and science communicator at the Space Telescope Science Institute (USA), in a conversation with OpenMind
Io's permanent volcanic activity prevents the formation of craters and gives them striking colors. Ground-based telescopes have revealed that its atmosphere fluctuates when orbit puts it in the planet's shadow. This thin layer, composed mostly of carbon dioxide emitted by volcanoes, collapses when eclipsed by the gas giant, but is restored once more when the moon receives sunlight.
Source: Laura Chaparro; SCIENCE SCIENTIFIC INSIGHTS

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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Northern lights
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

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Concealment of Io

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