Keyword: neptune
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Over a 17-year period, an international team of astronomers monitored Neptune’s atmospheric temperatures. They discovered that Neptune’s global temperatures dropped unexpectedly, followed by a dramatic warming at its south pole. Credit: ESO/M. Roman ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Using ground-based telescopes, including the European Southern Observatory’s Very Large Telescope (ESO’s VLT), an international team of astronomers track Neptune’s atmospheric temperatures over a 17-year period. They found a surprising drop in Neptune’s global temperatures followed by a dramatic warming at its south pole. “This change was unexpected,” says Michael Roman, a postdoctoral research associate at the University of Leicester, UK, and lead author of the...
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Astronomers have used telescope data to color-correct Voyager 2 images of Neptune and Uranus, revealing that the planets have a similar greenish blue hue. VIDEO AT LINK........... Panels a and b show early images of the visible appearance of Uranus and Neptune reconstructed from Voyager 2 ISS images in 1986 and 1989, respectively, showing Uranus to be pale blue-green, and Neptune dark blue (PIA18182 and PIA01492, credit: NASA/JPL-Caltech). While these early Uranus images were close to ‘true’ colour, the Neptune images were actually stretched and enhanced. Panels c and d show more recent reconstructions of the true colours of these...
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Our ideas of the colours of the planets Neptune and Uranus have been wrong, research led by UK astronomers reveals. Images from a space mission in the 1980s showed Neptune to be a rich blue and Uranus green. But a study has discovered that the two ice giant planets are both similar shades of greenish blue. It has emerged that the earlier images of Neptune had been enhanced to show details of the planet's atmosphere, which altered its true colour. "They did something that I think everyone on Instagram will have done at some time in their life, they tweaked...
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Explanation: Ringed ice giant Neptune lies near the center of this sharp near-infrared image from the James Webb Space Telescope. The dim and distant world is the farthest planet from the Sun, about 30 times farther away than planet Earth. But in the stunning Webb view, the planet's dark and ghostly appearance is due to atmospheric methane that absorbs infrared light. High altitude clouds that reach above most of Neptune's absorbing methane easily stand out in the image though. Coated with frozen nitrogen, Neptune's largest moon Triton is brighter than Neptune in reflected sunlight, seen at the upper left sporting...
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Sorry, Jupiter. Astronomers have discovered 62 new moons orbiting the ringed planet Saturn. The satellite haul brings the planet's total number of moons to over 100 and also means the gas giant takes back the crown as the solar system's "moon king" from Jupiter. Prior to this discovery, Saturn had 83 moons recognized by the International Astronomical Union(opens in new tab), so the new batch brings the total number to an incredible 145. The discovery marks another milestone for Saturn, with the planet becoming the first world in the cosmos known to be orbited by more than 100 moons. The...
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Original text, Ukrainian:Історичне відео найбільшої морської перемоги після Другой світової війни, яке ми отримали від джерел, близьких до КБ "Луч". Рівно один рік тому, 13 квітня 2022-го року, о 14.10, рохрахунок протикорабельного ракетного комплексу РК-360 Нептун Збройних сил України здійснив залп двох ракет по флагманському кораблю Чорноморського флоту РФ ракетному крейсеру "Москва". О 14.17 дві ракети вразили крейсер. "Москва" загорілась. Увечері екіпаж крейсера залишив корабель та припинив боротьбу за живучість, під час буксирування крейсера зранку 14 квітня крейсер "Москва", майже 12 тисяч тон масою, з комплексом ракетного озброєнняч, затонув. Блискучий успіх українських воїнів та інженерний подвиг конструкторського бюро "Луч" та...
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Quaoar is one of the so-called trans-Neptunian objects, small planets orbiting beyond the solar system's outermost planet Neptune. Quaoar is a proud owner of its own moon, the 100-mile-wide Weywot. And a recent observation campaign revealed that it also has a ring of material in its orbit. Quaoar's ring is at a very unusual distance from its parent body. In fact, before astronomers discovered Quaoar's ring in observations from several telescopes conducted between 2018 and 2021, they had thought that it was impossible for a ring to exist at such a distance. With a radius of about 2,420 miles from...
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University of Arizona scientists have uncovered a curious case of missing asteroids. The main asteroid belt is a zone containing millions of rocky objects between the orbits of Mars and Jupiter. The scientists find that there ought to be more asteroids there than researchers observe. The missing asteroids may be evidence of an event that took place about 4 billion years ago, when the solar system's giant planets migrated to their present locations. UA planetary sciences graduate student David A. Minton and UA planetary sciences professor Renu Malhotra say missing asteroids is an important piece of evidence to support an...
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This is an artist's concept of a hypothetical 10-million-year-old star system. The bright blur at the center is a star much like our sun. The other orb in the image is a gas-giant planet like Jupiter. Wisps of white throughout the image represent traces of gas. Astronomers using NASA's Spitzer Space Telescope have found evidence showing that gas-giant planets either form within the first 10 million years of a sun-like star's life, or not at all. The lifespan for sun-like stars is about 10 billion years. The scientists came to this conclusion after searching for traces of gas around...
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Jupiter, the biggest planet in the solar system, might have gained its dominant position after swallowing up a smaller planet, scientists believe. Studies on Jupiter have revealed that the giant planet, which is more than 120 times bigger than the Earth, has an extremely small core that weighs just two to 10 Earth masses. Now scientists have claimed that Jupiter's core might have been vaporised in huge collision with a planet up to ten times the size of Earth, the New Scientist reported. Researchers led by by Shu Lin Li of Peking University in China have modelled what might have...
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an image of uranus taken using the keck observatory. The planet appears to glow blue against the darkness, with thin, gossamer rings wrapped vertically around its middle Uranus as imaged by the Keck Observatory. (Lawrence Sromovsky, University of Wisconsin-Madison/W.W. Keck Observatory) Uranus marches to the beat of its own weird little drum. Although it shares many similarities with our Solar System's other ice giant, Neptune, it has a bunch of quirks that are all its own. And one of these is impossible to miss: Its rotational axis is so skewed it may as well be lying down. That's a whopping...
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<p>WASHINGTON (AP) — Uranus is a lopsided oddity, the only planet to spin on its side. Scientists now think they know how it got that way: It was pushed over by a rock at least twice as big as Earth.</p>
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<p>Uranus is a lopsided oddity, the only planet to spin on its side. Scientists now think they know how it got that way: It was pushed over by a rock at least twice as big as Earth.</p>
<p>Detailed computer simulations show that an enormous rock crashed into the seventh planet from the sun, said Durham University astronomy researcher Jacob Kegerreis, who presented his analysis at a large earth and space science conference this month.</p>
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... New research shows that Uranus, a chilly, hostile planet with a number of peculiar features, was the victim of a devastating impact during those early years, and it might explain some of the planet’s strange personality. Uranus moves much differently than the other planets in our Solar System, spinning on its side in comparison to the rest of the worlds in our neighborhood. Astronomers have often wondered just how this happened, but simulations performed by scientists at Durham University’s Institute for Computational Cosmology might have finally produced the answer. “We ran more than 50 different impact scenarios using a...
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You might be aware of one of Uranus’ complexities: It spins on its side, and its moons orbit on that same rotated plane. New evidence strengthens the case that Uranus was smashed in a giant collision, resulting in its sideways orientation to its orbital plane and perhaps explaining some of the planet’s other mysteries. A new paper performs a series of simulations on Uranus early in its history, taking note of what an early impact may have done to its rotation rate, atmosphere, and internal structure. The impact could have left a clear signature still visible inside the planet we...
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If Uranus was not tilted in one blow, as is commonly thought, but rather was bumped in at least two smaller collisions, there is a much higher probability of seeing its moons orbit in the direction we observe. By European Planetary Science Congress, AAS Division for Planetary Science — Uranus’ highly tilted axis makes it something of an oddball in our solar system. The accepted wisdom is that Uranus was knocked on its side by a single large impact, but new research rewrites our theories of how Uranus became so tilted and also solves fresh mysteries about the position and...
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NASA’s James Webb Space Telescope shows off its capabilities closer to home with its first image of Neptune. Not only has Webb captured the clearest view of this distant planet’s rings in more than 30 years, but its cameras reveal the ice giant in a whole new light. Most striking in Webb’s new image is the crisp view of the planet’s rings – some of which have not been detected since NASA’s Voyager 2 became the first spacecraft to observe Neptune during its flyby in 1989. In addition to several bright, narrow rings, the Webb image clearly shows Neptune’s fainter...
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One of Jupiter's tenuous rings can be seen in this infrared image. (NASA/ESA/CSA/STScI/Judy Schmidt) Given its similarities to its neighbor, Saturn, it seems natural to ask why Jupiter doesn't also have a magnificent, extensive system of visible rings. Alas, it's not the reality. While Jupiter does have rings, they're thin, tenuous, flimsy things of dust, visible only when back-lit by the Sun. According to new research, these discount rings lack bling because Jupiter's posse of chonky Galilean moons keep discs of rock and dust from accumulating the way they do around Saturn. "It's long bothered me why Jupiter doesn't have...
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The UK and Denmark have sent Harpoon anti-ship missiles to Ukraine which has led to President Putin ordering his warships to retreat 60 miles from the coast. Russia is desperately trying to fit warships with anti-air defences normally meant for land as Vladimir Putin fears Britain's deadly Harpoon missiles - which are being sent to Ukraine, according to reports. The UK and Denmark have sent Harpoon anti-ship missiles to Ukraine which has led to President Putin ordering his warships to retreat 60 miles from the coast. The humiliating climbdown suggests the attacks Putin was targeting on a beach in Odessa...
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Archaeologists have unearthed the ancient burial of a woman lying on a bronze bed near the city of Kozani in northern Greece. It dates to the first century B.C. Depictions of mermaids decorate the posts of the bed. The bed also displays an image of a bird holding a snake in its mouth, a symbol of the ancient Greek god Apollo. The woman's head was covered with gold laurel leaves that likely were part of a wreath... The wooden portions of the bed have decomposed. Gold threads, possibly from embroidery, were found on the woman's hands, Chondrogianni-Metoki said. Additionally, four...
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