NASA's Juno spacecraft enters Jupiter's magnetic field

NASA's Juno spacecraft enters Jupiter's magnetic field
This chart presents data the Waves investigation on NASA's Juno spacecraft recorded as the spacecraft crossed the bow shock just outside of Jupiter's magnetosphere on July 24, 2016. Credit: NASA/JPL-Caltech/SwRI/Univ. of Iowa NASA/JPL-Caltech/SwRI/Univ. of Iowa

NASA's Jupiter-bound Juno spacecraft has entered the planet's magnetosphere, where the movement of particles in space is controlled by what's going on inside Jupiter.

"We've just crossed the boundary into Jupiter's home turf," said Juno Principal Investigator Scott Bolton of Southwest Research Institute, San Antonio. "We're closing in fast on the planet itself and already gaining valuable data."

Juno is on course to swing into orbit around Jupiter on July 4. Science instruments on board detected changes in the particles and fields around the spacecraft as it passed from an environment dominated by the interplanetary into Jupiter's magnetosphere. Data from Juno's Waves investigation, presented as audio stream and color animation, indicate the spacecraft's crossing of the just outside the magnetosphere on June 24 and the transit into the lower density of the Jovian magnetosphere on June 25.

"The bow shock is analogous to a sonic boom," said William Kurth of the University of Iowa in Iowa City, lead co-investigator for the Waves investigation. "The solar wind blows past all the planets at a speed of about a million miles per hour, and where it hits an obstacle, there's all this turbulence."

NASA's Juno spacecraft enters Jupiter's magnetic field
This chart presents data that the Waves investigation on NASA's Juno spacecraft recorded as the spacecraft entered Jupiter's magnetosphere on July 25, 2016, while approaching Jupiter. Credit: NASA/JPL-Caltech/SwRI/Univ. of Iowa

The obstacle is Jupiter's magnetosphere, which is the largest structure in the solar system.

"If Jupiter's magnetosphere glowed in visible light, it would be twice the size of the full moon as seen from Earth," Kurth said. And that's the shorter dimension of the teardrop-shaped structure; the dimension extending outward behind Jupiter has a length about five times the distance between Earth and the sun.

Out in the solar wind a few days ago, Juno was speeding through an environment that has about 16 particles per cubic inch (one per cubic centimeter). Once it crossed into the magnetosphere, the density was about a hundredfold less. The density is expected to climb again, inside the magnetosphere, as the spacecraft gets closer to Jupiter itself. The motions of these particles traveling under the control of Jupiter's magnetic field will be one type of evidence Juno examines for clues about Jupiter's deep interior.

NASA's Juno spacecraft enters Jupiter's magnetic field
NASA's Juno spacecraft obtained this color view on June 28, 2016, at a distance of 3.9 million miles (6.2 million kilometers) from Jupiter. Credit: NASA/JPL-Caltech/SwRI/MSSS

While this transition from the solar wind into the was predicted to occur at some point in time, the structure of the boundary between those two regions proved to be unexpectedly complex, with different instruments reporting unusual signatures both before and after the nominal crossing.

"This unusual boundary structure will itself be the subject of scientific investigation," said Barry Mauk of the Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland, who is the instrument lead for the Jupiter Energetic-Particle Detector Instrument (JEDI) on Juno.

The Juno spacecraft launched on Aug. 5, 2011, from Cape Canaveral, Florida.

Credit: Jet Propulsion Laboratory

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Jul 01, 2016
While this transition from the solar wind into the magnetosphere was predicted to occur at some point in time, the structure of the boundary between those two regions proved to be unexpectedly complex, with different instruments reporting unusual signatures both before and after the nominal crossing.

This is due to the failed models (MHD) they rely on. Until they experience the analog of the "thermonuclear crisis" nuclear scientists went through in the 50's-60's they will continue to be surprised and their predictions will continue to fail. Their laughably simplistic "ionized gas" models are doomed to the fate of epicycles and geocentrism.

Jul 01, 2016
the structure of the boundary between those two regions proved to be unexpectedly complex
This is due to
@cd
that is almost comical
your eu, the group who makes it's known FALSE claim on being electromagnetically educated above and far beyond the astrophysicists who're actually being published, couldn't actually predict this because, as noted, its "unexpectedly complex, with different instruments reporting unusual signatures both before and after the nominal crossing"?!

but you want to crow about it here?
where is your peer reviewed journal study predicting the exact outcome found by Juno?

i can tell you where: there isn't one
why?
because the magnetosphere is based upon multiple factors yall don't know sh*t about

.

your pseudoscience has absolutely no predictability even in a section of astrophysics that they falsely claim to be superior in

this is why eu is pseudoscience and not recognized by real scientists

Jul 01, 2016
This comment has been removed by a moderator.

Jul 01, 2016
(..) to the fate of epicycles and geocentrism.
- CD

You might find these interesting:

https://www.youtu...Jim822MQ

https://www.youtu...NRX1C9L0

https://www.youtu...1sBExjvw

"The cloud layer is only about 50 km (31 mi) deep, and consists of at least two decks of clouds: a thick lower deck and a thin clearer region. There may also be a thin layer of water clouds underlying the ammonia layer, as evidenced by flashes of lightning detected in the atmosphere of Jupiter. This is caused by water's polarity, which makes it capable of creating the charge separation needed to produce lightning. These electrical discharges can be up to a thousand times as powerful as lightning on Earth.[47] The water clouds can form thunderstorms driven by the heat rising from the interior.[48]" - wikipedia

Jul 01, 2016
Ummm, yes, @Otto, Jupiter has an atmosphere and has storms and even electrical storms. Just like on Earth.

Your point? Did you even have one? Are you implicitly claiming some scientist said there'd be no lightning on Jupiter? If you are, let's have a quote.

Jul 01, 2016
Meanwhile, for the rest of us who are normal, this is going to be really interesting to watch. We're going to find out a whole bunch of stuff about Jupiter that we didn't know before. We sent one probe to study it and its moons, and four more passed by and got some pictures. Looks like we made good use of the data and figured out what we most need to know, and this probe is the one that will find that out. And we even got the bonus data this article is about. It's not even completed orbital insertion yet and we're already getting some pretty good science from it.

Jul 01, 2016
The quote from wiki was for the benefit of those who may not have known about the lightning/thunderstorms on Jupiter. My main contribution at this time was the three links I provided wrt the preparations for the launch of Juno. High school students do frequent this site to acquire some information, after all. The third link is: "NASA's Juno Spacecraft Nearing Jupiter Orbit on July 4th". Enjoy.

Jul 01, 2016
LOL, foulest mouthed troll on the site is supposedly teaching high school kids?

Pull the other leg.

Jul 01, 2016
And your objection to that is....?
High school kids (millennials) have a bad habit of talking as much trash as YOU do in your capacity of head troll of Physorg. They far outweigh anything that I could possibly say or have said in this site. Maybe you don't know any high school students? That would account for your lack of observation of the way kids talk these days. It's not much different from the way YOU talked in your own teen years. And probably worse.

Jul 02, 2016
Hahahaha, no, man, I don't talk trash much. I just don't like trolls like you.

You want some cred keep the potty mouth off the site for a year or so and maybe I'll forget.

Not to mention don't trawl any more EU in front of us and then start talking like you're addressing real science. If you don't want me figuring out what your latest game is and dinging you for it, stop playing games.

Or you could say something like, "Hey, I been a real screwup but I'm trying to turn over a new leaf. Gimme a break." But naaaaahhhhhh, that'd be too honest and straightforward for someone like you.

Jul 02, 2016
looks like my username just became relevant again

Jul 02, 2016
As far as I'm concerned, the jury is still out on both the Einsteinian Standard Model AND the Electric Universe Model. Those who claim that there is no possibility that EU is, or is also, correct, are the equivalent of someone who jumps off a bridge into a dry riverbed - without first looking for evidence that the river hasn't dried up. My attitude is to "wait and see" and I suggest the same for other interested parties who are also willing to wait for further developments/evidences for the truth of the matter.
All the ad hominem and bemoaning the alternative choices have no meaning. The truth will set you free.

yep
Jul 03, 2016
looks like my username just became relevant again


Because of the black hole in your head?

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