Technology: Jupiter and Saturn revealing startling new clues as to how they tick - PressFrom - US

TechnologyJupiter and Saturn revealing startling new clues as to how they tick

09:10  08 march  2019
09:10  08 march  2019 Source:

Saturn's rings haven't always been there

Saturn's rings haven't always been there While Saturn's rings may disappear in less than 100 million years because gravity is pulling them into the planet, apparently they haven't always surrounded the planet, either. The finding was published in the journal Science on Thursday. require(["medianetNativeAdOnArticle"], function (medianetNativeAdOnArticle) { medianetNativeAdOnArticle.getMedianetNativeAds(true); }); When NASA's Cassini spacecraft plunged into the planet's atmosphere to end its 20-year mission in 2017, it dived between the planet and its rings.

On Wednesday, NASA released new images of Saturn ’s north polar region, which has changed color in the last four years, possibly because summer has reached the northern hemisphere. In contrast to the chaotic weather patterns at Jupiter ’s poles, a stable hexagonal pattern covers Saturn ’s north pole.

The new simulations created several rocky objects that grew the size of Earth in 400,000 years and between one and four rocky cores which later This is the first time that studies and simulations have created precursors of the gas-giant planets, similar to Jupiter and Saturn in our Solar System.

Jupiter and Saturn revealing startling new clues as to how they tick© iStock

Recent data transmitted by spacecraft studying Jupiter and Saturn are challenging researchers’ preconceived notions as to how these planets are formed.

The gravity and magnetic information relayed from the Juno and Cassini probes of the fifth and sixth planets of the solar system is “confounding” at least one researcher, reported Science Daily.

“Although there are puzzles yet to be explained, this is already clarifying some of our ideas about how planets form, how they make magnetic fields and how the winds blow,” said Caltech astronomer David Stevenson.

Shaky rings help scientists measure Saturn’s days

Shaky rings help scientists measure Saturn’s days Speedy planet

These meetings of Jupiter and Saturn , called “Great Conjunctions,” usually happen in years divisible by 20 – and always in the constellation of Taurus, Virgo or Capricornus, although sometimes on the boundary of some adjacent constellation, which is why the Virgo conjunctions are sometimes listed as

So how ’d we end up with only Jupiter and Saturn ? A new paper published today in Nature attempts to answer why, and it could change the prevailing view of how all of the planets Older theories were based on the theory of “pebble accretion,” which explains how the gas giant cores formed so quickly.

Cassini had been studying Saturn for 13 years before its 2017 incineration in the planet’s upper atmosphere; Juno has been circling Jupiter for more than two years and has been successful, in large part, due to its solar-powered design and ability to withstand intense radiation.

The gravity and magnetic sensors on bard Juno have also transmitted hard-to-explain data. Jupiter’s magnetic field’s spots vary wildly between the northern and southern hemispheres.

Microwave data has particularly intrigued researchers by showing that the atmosphere is evenly mixed, something previously theories did not account for.

Stevenson says fitting a microwave sensor onto Juno was a smart move.

“Using microwaves to figure out the deep atmosphere was the right, but unconventional choice,” he said.

Scientists are exploring weather events concentrating on gas, liquids and ice in different parts of the atmosphere as possible explanations.

“It’s unlike anything we have seen before,” said Stevenson.

The gravity data also confirms there are heavier elements than the 90% mass of hydrogen and helium that make up Jupiter.

Saturn Moon Has Lakes Filled With Liquid Methane.
The Saturn moon Titan was discovered to have deep lakes filled with liquid methane.

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