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Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ NASA's Juno Spacecraft sees the shadow of the moon of the other world of Jupiter – Spaceflight Now

NASA's Juno Spacecraft sees the shadow of the moon of the other world of Jupiter – Spaceflight Now



The shadow of the moon of Jupiter Yo is cast on the cloud tops of a giant planet in this view taken on September 12 from a camera aboard a NASA spacecraft. Kevin Jill, a software engineer at NASA's Jet Propulsion Laboratory, created this mosaic of images made with the JunoCam tool. Credit: NASA / JPL-Caltech / SwRI / MSSS / Kevin M. Gill

Fresh images from NASA's June spacecraft show an ethereal shadow cast by Jupiter Yo's volcanic moon on the planet's rotating clouds.

JunoCam's image captures views of Jupiter's crisp shadow of Jupiter during his latest passage near the giant planet, and experienced amateur photo analysts immediately set about working on data processing in blinding black circle renders against the backdrop of the lapping clouds of Jupiter.

Juno notices the eclipse during September. 12 encounters near Jupiter, the 22nd such since its arrival in orbit around the largest planet on the solar system on July 4, 2016. The spacecraft carries instruments to study Jupiter's internal structure and time, along with sensors for measuring and mapping the planet's strong magnetic field and gravity.

Io is the most volcanically active object in the solar system. Scientists have discovered hundreds of Yo volcanoes, many of them launching fountains of lava and gas hundreds of miles above the moon's surface.

NASA's New Horizons spacecraft recorded this view of Jupiter Io's moon and one of its erupting volcanoes during a 2007 Jupiter encounter on the way to Pluto. Credit: NASA Applied Physics Laboratory / Johns Hopkins / Southwestern Research Institute / Goddard Space Flight Center

Volcanoes are caused by the massive pull of Jupiter gravity, coupled with the weaker influence of gravity on the moon by gravity. The gravitational forces pull the interior of Io, displacing the rock material inside the moon and generating friction heat.

A super heated molten rock or magma erupts through numerous geyser-like volcanoes generating visible jets reaching far beyond Io, Jupiter's volcanic moon is also covered in lava lakes and has a thin atmosphere of sulfur dioxide, gas, and radiation. from volcanic eruptions.

NASA's Juno Spacecraft orbits Jupiter in an elliptical 53-day orbit, with a low point located approximately 2,100 miles (3,400 kilometers) above the cloud tops of the planet.

The spacecraft built by Lockheed Martin is sound and all its instruments are working, said Scott Bolton, principal investigator of the Juno Mission at the Southwestern Research Institute in San Antonio, a presentation last month to NASA's External Planets Assessment Group.

The instruments of Juno peered beneath Jupiter's clouds to study the planet's internal meteorological models.

Unun data show that Jupiter has a blurred, obscure nucleus that is much larger than expected. The discovery led scientists to suggest an ancient collision between young Jupiter and another giant protoplanet that could explain Jupiter's blurry center.

Juno also made images of Jupiter's Auroras and explored lightning in a hydrogen-rich atmosphere on the planet.

The shadow of the moon of Jupiter Io is cast on the cloud tops of a giant planet, in this view taken on September 12 by a camera aboard NASA's Juno spacecraft. Kevin Gill, a software engineer at NASA's NASA Jet Propulsion Laboratory, created this fisheye composition from images taken with the JunoCam tool. Credit: NASA / JPL-Caltech / SwRI / MSSS / Kevin M. Gill

NASA approved Juno's mission to continue until July 2021, but Juno may continue to operate later in the 2020s.

Engineers worry that intense radiation around Jupiter could damage Juno's electronics by repeatedly passing through the planet's radiation belts. The spacecraft's computer and other sensitive electronics are surrounded by a titanium compartment or vault to protect the components from radiation.

Authorities say they do not see any signs of radiation damage to the spacecraft so far.

It was initially assumed that Juno was maneuvering into a smaller, 14-day orbit around Jupiter after arriving on the planet in 2016. But a problem with the main engine of the vessel prevented the orbit from changing.

The longer 53-day orbit requires more time for Juno to obtain the necessary scientific data on the mission. Initially, Juno's mission was scheduled to end in 2018 with controlled destructive immersion in Jupiter's atmosphere.

One advantage of the longer 53-day orbit is that Juno receives a lower dose of radiation, alleviating some of the concerns about the radiation damage to spacecraft

In its current orbit, the Juno spacecraft will pass through Jupiter's shadow November, robbing the orbit of sunlight for its energy-generating solar arrays. Ground-based teams plan to use the spacecraft's propulsion control system pushers on September 30 for a burn to slightly adjust their trajectory around Jupiter to avoid the eclipse.

Send e-mail to author. [19659003] Follow Stephen Clark on Twitter: @ StephenClark1 .


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