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Jupiter Used to Be Four Times Farther from the Sun, Study Claims
03/26/2019 9:33:56 AM PDT · by BenLurkin · 49 replies
Populat Mechanics ^ | Mar 25, 2019 | By Avery Thompson
…[S]ientists have discovered enough planets around other stars to offer a clearer picture of the average solar system, and to reveal the ways in which our own solar system is really weird. For instance, most systems have gas giant planets, but those "hot Jupiters" tend to orbit very close to their host stars. That makes our solar system an outlier. All our system’s gas giants orbit in the outer solar system, while the inner region is reserved for rocky planets like our own. But according to a new simulation, our home system is even weirder than we thought. One of...

A Diamond the Size of Earth - is this Jupiter's core?
12/28/2018 10:47:49 AM PST · by Red Badger · 57 replies ^ | 12/28/2018 - Undated | Staff
In his book "2061 - Odyssey Three" (the third of his Space Odyssey series), Arthur C. Clarke put forward the intriguing proposal that the core of the planet Jupiter was, in fact, a diamond the size of Earth. Now Clarke, even though a science fiction author of some repute, had a science background and always tried to bring rigorous scientific accuracy to his stories. So, could his proposition be possible? The somewhat predictable answer is - we don't know. But we can analyse the possibility within known scientific parametres, to see if it is, at least, possible. For diamond to...

[NASA orbiter] Juno Spots 'Wave Trains' in Jovian [Jupiter] Atmosphere
11/08/2018 8:18:23 AM PST · by ETL · 12 replies ^ | Nov 6, 2018 | News Staff / Source
NASA’s Juno orbiter has detected ‘wave trains’ — massive structures of moving air that appear like waves — in the atmosphere of Jupiter Wave trains are towering atmospheric structures that trail one after the other as they roam Jupiter.They were first detected by NASA’s Voyager missions during their flybys of the giant planet in 1979.“Juno’s imager called the JunoCam has counted more distinct wave trains than any other spacecraft mission since Voyager,” said Juno team member Dr. Glenn Orton, of NASA’s Jet Propulsion Laboratory.“The trains, which consist of as few as two waves and as many as several dozen, can...

The Purported Plumes of Jupiter's Moon Europa Are Missing 'Hotspot' Engines
10/24/2018 8:49:46 AM PDT · by BenLurkin · 8 replies ^ | October 24, 2018 07:00am ET | Nola Taylor Redd,
Plumes are common throughout the solar system. Jupiter's moon Io is constantly shooting volcanic material into the air. Saturn's icy moon Enceladus famously blasts water vapor and other material from its subsurface ocean into space via a set of geysers near the south pole. And Earth is rich in geysers, from Yellowstone National Park's Old Faithful to Iceland's Great Geysir. Firing off the gas that makes up these plumes requires an energy source, which usually heats up the ground around the plume source. Enceladus, Io and Earth all have hotspots around their geysers and volcanoes. But not Europa, as far...

Jupiter's Icy Moon Europa Has a Really Weird Cold Spot
09/07/2018 2:11:28 PM PDT · by BenLurkin · 18 replies ^ | September 7, 2018 12:19pm ET | Meghan Bartels,
Just because Jupiter's moon Europa is coated in ice doesn't mean all that ice is the same temperature. And now, scientists have mapped the hot and cold spots on the moon's surface using data gathered from Earth, with accuracy down to 125 miles (200 kilometers). While most of the temperature variations they measured can be explained by sunlight's influence on the ice, there's one unusually cold spot that is stumping the scientists behind the new research. That spot, which falls on the moon's northern hemisphere, stood out in images taken at different times of the day, which surprised the scientists....

Jupiter's Moon Ganymede Generates Incredible Magnetic Waves
08/07/2018 10:12:39 PM PDT · by BenLurkin · 26 replies
Gizmodo ^ | 08/06/2018
NASA’s Galileo spacecraft surprised scientists when it revealed that Jupiter’s moon Ganymede generated its own magnetic field. But new research shows Ganymede also creates incredibly powerful waves that rocket particles to enormous energies. Scientists revealed these huge electromagnetic waves while studying old data from Galileo, which orbited Jupiter from 1995 to 2003. The observations show another wild way that a moon can interact with the magnetic field of its planet. Jupiter’s radius is around 11 times that of Earth, but it is perhaps 20,000 times more magnetic. This generates an intense radiation environment around the planet. Typically, these waves around...

Researchers Discover 12 New Moons Around Jupiter
07/17/2018 10:10:37 AM PDT · by BenLurkin · 18 replies
ktla ^
In March 2017, Jupiter was in the perfect location to be observed using the Blanco telescope at the Cerro Tololo Inter-American Observatory in Chile, which has the Dark Energy Camera and can survey the sky for faint objects. Astronomer Scott Sheppard of the Carnegie Institution for Science and his team were using the telescope to search the edge of the solar system for signs of Planet Nine. They realized they could observe Jupiter at the same time. They would be able to tell the difference between Jupiter and the objects around it versus the distant solar system objects because any...

NASA reveals stunning images of Jupiter taken by the Juno spacecraft
06/26/2018 12:49:24 PM PDT · by Simon Green · 52 replies
The Independant ^ | 06/25/18 | Alexandra Richards
Nasa has released stunning images of Jupiter taken from the Juno spacecraft. The breathtaking images show swirling cloud belts and tumultuous vortices within Jupiter’s northern hemisphere. Scientists said the photos allowed them to see the planet’s weather system in greater detail. According to the space station, the brighter colours in the images represent clouds made up of ammonia and water, while the darker blue-green spirals represent cloud material "deeper in Jupiter's atmosphere." At the time Juno was about 9,600 miles from the planet's cloud tops. The Juno satellite was launched in order to improve Nasa’s understanding of the solar...

This May Be the Best Evidence Yet of a Water Plume on Jupiter's Moon Europa
05/14/2018 10:23:16 AM PDT · by Simon Green · 16 replies ^ | 05/14/18 | Mike Wall,
The case for a giant plume of water vapor wafting from Jupiter's potentially life-supporting moon Europa just got a lot stronger. NASA's Hubble Space Telescope has spotted tantalizing signs of such a plume multiple times over the past half decade, but those measurements were near the limits of the powerful instrument's sensitivity. Now, researchers report in a new study that NASA's Galileo Jupiter probe, which orbited the planet from 1995 to 2003, also detected a likely Europa plume, during a close flyby of the icy moon in 1997. The newly analyzed Galileo data provides "compelling independent evidence that there seems...

Jupiter and Venus Change Earth’s Orbit Every 405,000 Years
05/10/2018 7:28:52 PM PDT · by BenLurkin · 65 replies ^ | 05/10/2018 | Matt Williams
Over the course of the past 200 million years, our planet has experienced four major geological periods (the Triassic, Jurassic and Cretaceous and Cenozoic) and one major ice age (the Pliocene-Quaternary glaciation), all of which had a drastic impact on plant and animal life, as well as effecting the course of species evolution. For decades, geologists have also understood that these changes are due in part to gradual shifts in the Earth’s orbit, which are caused by Venus and Jupiter, and repeat regularly every 405,000 years. But it was not until recently that a team of geologists and Earth scientists...

Grab Your Telescope: Jupiter Will Shine Its Brightest Tonight
05/08/2018 12:44:46 PM PDT · by BenLurkin · 29 replies
gizmodo ^ | May 8, 2018 | Ryan F. Mandelbaum
Jupiter is in opposition today, meaning it’s exactly opposite the sun in the sky, like the Moon when it’s full. The gas giant will be brighter than any star in the sky. I was able to see the bands of gas and dust and the four brightest moons, Ganymede, Callisto, Europa, and Io, with a small telescope. Two of the moons were even visible from my Brooklyn apartment with my budget binoculars (these guys). You should look at it. The planet will actually be closest to Earth on May 10, according to The opposition doesn’t line up with the...

By Jove: Jupiter at Opposition for 2018
05/02/2018 7:26:11 AM PDT · by BenLurkin · 14 replies
universetoday ^ | by David Dickinson
That bright “star” is actually a planet, the king of them all as far as our Solar System is concerned: Jupiter. May also ushers in Jupiter observing season, as the planet reaches opposition on May 9th, rising in the east opposite to the setting Sun to the west. Jupiter now joins Venus in the dusk sky, ending the planetary drought plaguing many an evening star party. Shining a magnitude -2.5 near opposition, you can even pick Jupiter out against the deep blue daytime sky… if you know exactly where to look for it. The Moon visits Jupiter once every orbit,...

How to See the 'Jupiter Triangle' in April's Night Sky
04/08/2018 9:39:20 AM PDT · by BenLurkin · 6 replies ^ | April 8, 2018 09:02am ET | Joe Rao,
Since most of us do not have as a fertile imagination as our ancestors in visualizing people, animals, mythological beasts or even inanimate objects among the stars, we tend to fall back on more familiar figures, such as a great square, a backwards question mark, a kite, and so on. The sky abounds in this particular shape.... In addition to two constellations that are officially recognized as triangles (Triangulum and Triangulum Australe, the Southern Triangle), there are triangles that represent the hindquarters of two animals, the Big Dog (Canis Major) and the Lion (Leo). ... Probably the most famous celestial...

An even more spectacular movie of Jupiter’s storms!
03/12/2018 12:27:29 PM PDT · by Voption · 8 replies
Behind the Black ^ | March 12, 2018 | Robert Zimmerman
"Cool image time! Yesterday I posted a short gif created by citizen scientist Gerald Eichstädt, using twelve Juno images, that showed some cloud changes over time... Today, I discovered that Eichstädt has created an even more spectacular movie, which I have embedded below the fold, based on images taken during Juno’s tenth close fly-by."

NASA releases first images of Jupiter’s bizarre geometric storms
03/12/2018 1:17:36 AM PDT · by Swordmaker · 28 replies
Digital Trends ^ | March 9, 2018 | By Dylan Furness
Jupiter is a big, complex, chaotic planet. It has long been known as the most dominant feature in our sun’s orbit, but it wasn’t until last May that the planet’s internal features began to be revealed. During a few close passes, NASA’s $1.1 billion Juno spacecraft collected data on the gas giant that revealed cyclones the size of Earth and a surprisingly strong magnetic field. Now, data collected by Juno have uncovered more never-before-seen features on its north and south poles. In a study published this week in the journal Nature, a team of scientists report bizarre geometric storms surrounding...

See Jupiter's South Pole Change Over Time in Incredible Time-Lapse View
02/23/2018 4:44:58 PM PST · by BenLurkin · 12 replies ^ | Feb. 23, 2018 | Tarik Maliq
Jupiter's south pole is seen in a series of time-lapse images taken by NASA's Juno spacecraft during its 11th close flyby of the giant planet on Feb. 7, 2018. Credit: Gerald Eichstadt/NASA/JPL-Caltech/SwRI/MSSS You've never seen Jupiter's south pole quite like this. A new photo by NASA's Juno spacecraft show Jupiter's south pole as seen from above during a recent close encounter on Feb. 7. The photo is actually a series of images taken over time by Juno as the probe whipped around Jupiter during its 11th flyby of the giant planet.   ... The time-lapse views of Jupiter were taken over...

Jupiter’s Great Red Spot may be dying, and could disappear within our lifetimes
02/19/2018 8:57:01 PM PST · by BenLurkin · 67 replies ^
“In truth, the GRS has been shrinking for a long time,” Glenn Orton of NASA’s Jet Propulsion Laboratory told Business Insider. The storm was once as large as four times the diameter of Earth, but more recent observations have shown that it’s rapidly losing steam. “Now it’s something like 13 degrees wide in longitude and only 1.3 times the size of the Earth,” Orton says. “Nothing lasts forever.” Late last year, Juno revealed some surprising information about the huge storm, including how deep into the planet it goes. The data showed that the storm is up to 100 times deeper...

Stunning 'oil painting' image of Jupiter captured by Nasa’s Juno probe (tr)
01/11/2018 2:21:52 AM PST · by Oshkalaboomboom · 34 replies
Daily Mail ^ | Jan 11, 2018 | Phoebe Weston
A stunning new Nasa image shows raging storms on Jupiter with clouds that stretch for thousands of miles - and it looks just like an oil painting. Nasa's Juno spacecraft was a little more than one Earth diameter from Jupiter - or 8,292 miles (13,345 kilometres) - when it captured this mind-bending view of the planet's tumultuous atmosphere. The incredible colour-enhanced image was captured at a latitude of 48.9 degrees and depicts vasts swirling cloud formations that travel at about 129,000 mph (60 km/s) over the gas giant planet's surface. The spacecraft, which has been orbiting the planet since 2016,...

Venus, Jupiter conjunction: The brightest planets to meet up in Monday morning sky
11/13/2017 1:42:58 AM PST · by ETL · 28 replies ^ | November 12, 2017 | Brian Lada, AccuWeather meteorologist and staff writer
Jupiter and Venus will pair up in the sky on Monday morning, shining brightly together shortly before sunrise. The two planets will appear so close together that they may look like they are just one bright star rather than two planets. This is the closest these two planets will appear all year, an astronomical event known as a conjunction. Venus and Jupiter may appear very close to each other in the morning sky, but they are actually more than 400 million miles away from each other. Venus and Jupiter will rise together about one hour before sunrise in the eastern...

Mysterious object 13 times the size of Jupiter found
11/10/2017 11:11:30 PM PST · by ETL · 34 replies
FoxNews: Science ^ | November 10, 2017 | Matthew Dunn
In the hostile environment of the ‘galactic bulge’ at the heart of our galaxy, scientists have spotted a planet so big it might not actually be a planet. A large international team of researchers found the object when looking at data acquired by NASA’s Spitzer infra-red space telescope, which was first launched in 2003. Using a technique called micro-lensing, which measures distortions in light when a star passes in front of another, scientists were able to discover the mysterious object is 22,000 light years away from Earth, and orbits its parent star roughly every three years. Dubbed OGLE-2016-BLG-1190Lb, the object...
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