Tech & Science Jupiter is the oldest planet in the Solar System

11:15  18 june  2017
11:15  18 june  2017 Source:   Engadget UK

Mysterious Planet 10 could be hiding out beyond Pluto

  Mysterious Planet 10 could be hiding out beyond Pluto Move over, Planet 9. There's a new possible planet lurking out in the solar system and it could be messing with a whole lot of distant space rocks.The study, due to be published in the Astronomical Journal, has a low-key title: "The curiously warped mean plane of the Kuiper belt." But it has big implications. The Kuiper Belt is a region of the solar system that extends beyond Neptune's orbit. It's full of icy celestial bodies, including dwarf planet Pluto. According to NASA, the area "is probably populated with hundreds of thousands of icy bodies larger than 62 miles (100 km) across and an estimated trillion or more comets.

"The most plausible mechanism for this efficient separation is the formation of Jupiter , opening a gap in the disc and preventing the exchange of material between the two reservoirs," said Kruijer. " Jupiter is the oldest planet of the solar system

"The most plausible mechanism for this efficient separation is the formation of Jupiter , opening a gap in the disc and preventing the exchange of material between the two reservoirs," said Kruijer. " Jupiter is the oldest planet of the solar system

  Jupiter is the oldest planet in the Solar System © Provided by Engadget UK

Jupiter's ancient name really is well-deserved: according to a new study, the king of the planets isn't just the largest in the Solar System, it's also the oldest. A team of researchers from Lawrence Livermore National Laboratory in California and the University of Munster in Germany have determined that Jupiter's core was already 20 times the size of Earth merely 1 million years after the sun took shape 4.6 billion years ago. Since newborn stars tend to release energy that blows away gas and dust for planet formation, the gas giant must have had to absorb materials very, very fast.

Mysterious Planet 10 could be hiding out beyond Pluto

  Mysterious Planet 10 could be hiding out beyond Pluto Move over, Planet 9. There's a new possible planet lurking out in the solar system and it could be messing with a whole lot of distant space rocks.The study, due to be published in the Astronomical Journal, has a low-key title: "The curiously warped mean plane of the Kuiper belt." But it has big implications. The Kuiper Belt is a region of the solar system that extends beyond Neptune's orbit. It's full of icy celestial bodies, including dwarf planet Pluto. According to NASA, the area "is probably populated with hundreds of thousands of icy bodies larger than 62 miles (100 km) across and an estimated trillion or more comets.

"The most plausible mechanism for this efficient separation is the formation of Jupiter , opening a gap in the disc and preventing the exchange of material between the two reservoirs," said Kruijer. " Jupiter is the oldest planet of the solar system

"The most plausible mechanism for this efficient separation is the formation of Jupiter , opening a gap in the disc and preventing the exchange of material between the two reservoirs," said Kruijer. " Jupiter is the oldest planet of the solar system

The team came to the conclusion after testing for the presence and abundances of molybdenum and tungsten isotopes in some iron meteorites that fell to Earth. They found that the meteorites contained components from two distinct reservoir of materials, thanks to the data from the molybdenum isotopes. One reservoir has material from a different star than ours that didn't make it to the other reservoir. The data from the tungsten isotopes, on the other hand, showed that the two pools of materials were separated for 2 to 3 million years. In addition, they've been separated as early as a million years into the formation of the solar system.

The team explained that "the most plausible mechanism to efficiently separate two disk reservoirs for an extended period is the accretion of a giant planet in between them." Yes, that gas giant is Jupiter, and while its formation slowed as the years went by, it kept growing and growing enough to create a permanent barrier between the two pools. The researchers now believe that it could also be the reason why there are no super-Earths near the sun, which are commonly found in other star systems. That means we could owe our existence to Jupiter, because who knows if and how life would flourish on Earth if it's too near other, more massive planets.

Key Building Block of Life Found Around Young Sun-Like Stars .
Astronomers have discovered an important building block for life in the disk of dust and gas surrounding infant sun-like stars. The young, triple-star system IRAS 16293-2422 is located approximately 400 light-years from Earth in the constellation of Ophiuchus. The infant stars in this system have a similar mass to the sun, but are still in the early stages of formation. Researchers have detected a complex organic molecule called methyl isocyanate near the stars.

Source: http://uk.pressfrom.com/news/tech-science/-173338-jupiter-is-the-oldest-planet-in-the-solar-system/

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