Articles tagged with Uranus
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A new study by the University of Zurich suggests that Uranus and Neptune may be more rocky than icy, challenging their classification as ice giants. The researchers developed a unique simulation process to model the planets' interiors, which found that the two planets could have either water-rich or rock-rich compositions.
Researchers theorize that solar wind storms drove Voyager 2's observations of extreme radiation on Uranus. They suggest a co-rotating interaction region passing through the system could have fueled powerful high-frequency waves.
Hubble's OPAL program has observed the four giant outer planets since 2018, providing long-term baseline data on their atmospheric changes. The observations have led to remarkable discoveries, including the measurement of Jupiter's wind speeds and Saturn's ring system colors.
Researchers argue that the planets' unique magnetic fields can be explained by immiscible layers of water and hydrocarbons. Computer simulations show that a combination of water, methane, and ammonia separates into two distinct layers under extreme temperatures and pressures.
Researchers at UTIG develop a computer model to detect oceans in Uranus' moons by analyzing small oscillations in their spin. The technique could reveal liquid water worlds throughout the galaxy, potentially harboring life.
Astronomers used the combined perspective of Hubble and New Horizons to study the atmosphere of Uranus, a proxy for similar planets beyond our solar system. The results suggest that exoplanets may be dimmer than predicted at partial phases, offering new clues to their potential habitability.
Astronomers have discovered a small, cold exoplanet with an orbital period of 146 days, providing insight into planetary formation and evolution. The planet, HD88986b, is about twice the size of Earth and orbits a star similar to the Sun.
Researchers used data from Hubble Space Telescope to determine the true colors of Neptune and Uranus, revealing they are a similar shade of greenish blue. The main difference is that Neptune has a slight hint of additional blue due to a thinner haze layer on that planet.
New studies show that giant gas planets in nearby star systems can prevent life on smaller, rocky planet neighbors by kicking them out of orbit and wreaking havoc on their climates. Researchers found that four giant planets in the HD 141399 system are likely to destroy the chances for life on Earth-like planets.
University of Leicester astronomers confirm the existence of an infrared aurora on Uranus, offering clues to its magnetic fields and potential for life. The discovery may also help identify other habitable planets with similar characteristics.
Researchers used density functional theory to investigate the mechanical properties of superionic ice XVIII, which is thought to make up a large part of Neptune and Uranus. The study found that dislocations in the crystal lattice produce shear, leading to macroscopic deformations and potentially influencing the planets' magnetic fields.
Researchers found that oxygen makes diamond formation more likely, allowing for a wider range of conditions and planets. This discovery could lead to new methods of fabricating nanodiamonds with various applications.
New research by UC Riverside astrophysicist Stephen Kane suggests that Jupiter's four main moons would quickly destroy any large ring formations. This prevents Jupiter from having substantial rings, unlike Saturn. The study provides evidence of catastrophic events in the past through the analysis of ring compositions and shapes.
The Gemini North telescope has helped astronomers understand why Uranus and Neptune have different colors. Excess haze on Uranus builds up in its stagnant atmosphere, making it appear lighter than Neptune's. The team developed a single atmospheric model that matches observations of both planets.
Dr Henrik Melin, a researcher at the University of Leicester, has been awarded the third-ever Webb Fellowship to study the atmospheres of giant planets using the James Webb Space Telescope. He aims to understand the mechanisms driving powerful aurorae on these planets and address the 'energy crisis' in their upper atmospheres.
New research reveals that a layer of 'hot', electrically conductive ice could be responsible for generating the magnetic fields of ice giant planets. The study found two forms of superionic ice, one of which may exist in the interiors of Uranus and Neptune.
Researchers have created superionic ice phases XVIII and XX by subjecting water to record-breaking pressures and temperatures. The study provides insights into the formation of these conductive forms of ice and their potential role in explaining the mysterious magnetic fields of Uranus and Neptune.
Researchers propose that giant hailstones called mushballs carry ammonia deep into the atmospheres of ice giants Uranus and Neptune, hiding it from detection. This process could explain the unexpected lack of ammonia in their atmospheres compared to other planets.
Scientists developed a theoretical method to model the interior of ice giants Uranus and Neptune, allowing analysis of thermal and electrical processes. The study provides insights into the planets' geometry and evolution, including the existence of frozen cores and magnetic field generation.
A team led by Professor Shigeru Ida from Tokyo Institute of Technology suggests that Uranus was struck by a small icy planet, which tipped the young planet over and left behind its unique moon system. This model reproduces the current configuration of Uranus' satellites and may help explain other icy planets' configurations.
A study by Brazilian researchers suggests the Solar System took shape in its current form between 10-60 million years after its formation. The model, supported by São Paulo Research Foundation - FAPESP, reveals a chaotic phase that placed objects in their current orbits within the first 100 million years.
Astronomers have measured the temperature of Uranus' rings for the first time, finding a cool 77 Kelvin. The new images also reveal differences in ring composition compared to Saturn's rings, including lower albedo and narrower widths.
Scientists will study Uranus and Neptune's poorly understood regions with greater accuracy using a new, improved net flux radiometer. The instrument, developed for NASA's Planetary Concepts for the Advancement of Solar System Observations program, features thermopile sensors and seven infrared channels to measure heat.
The Hubble Space Telescope has uncovered new insights into the weather patterns of Uranus and Neptune, revealing dynamic atmospheres with mysterious dark storms. The observations suggest that these storms form in a similar way to Jupiter's Great Red Spot and are driven by seasonal changes.
Researchers at Durham University found that a massive collision with an object twice the size of Earth likely tilted Uranus on its side. The impact may have trapped heat, explaining the planet's extremely cold temperature. Simulations also suggest this event could have formed Uranus' rings and moons.
Astronomers have confirmed the presence of hydrogen sulfide in Uranus's cloud tops using sensitive spectroscopic observations. This discovery sheds light on questions about the planets' formation and history, particularly regarding the early Solar System's balance between nitrogen and sulfur.
A team of researchers presented a new model for the origin of Saturn's rings based on computer simulations. The study found that Kuiper belt objects were destroyed by tidal forces when passing close to giant planets, forming icy ring systems. This process explains the compositional differences between Saturn and Uranus' rings.
A team of astronomers detected eight large storms on Uranus's northern hemisphere, including the brightest storm ever seen at 2.2 microns. The storms are thought to be caused by gases such as methane rising in the atmosphere and condensing into highly reflective clouds of methane ice.
Astronomers have discovered a Uranus-like planet 25,000 light-years away, which orbits one star in a binary system. The planet's composition remains unknown due to its immense distance from the star.
Astronomers have discovered a Trojan asteroid sharing the orbit of Uranus, challenging previous estimates. The study predicts that three percent of scattered objects between Jupiter and Neptune should be co-orbitals with Uranus or Neptune.
A team of scientists has determined that the atmospheric layer on Uranus and Neptune extends only about 1000 km in depth, a significant finding that challenges current understanding of these planets' weather systems. This discovery was made possible by analyzing gravitational field data using novel methods.
A new study using the Keck II telescope has produced high-resolution infrared images of Uranus, revealing its bizarre weather patterns. The planet's deep blue-green atmosphere is characterized by massive weather systems behaving in unusual ways, with winds reaching up to 560 miles per hour.
Researchers detect faint, short-lived glowing dots on Uranus' dayside using Hubble Space Telescope. The unusual appearance of the auroras is attributed to Uranus' rotational weirdness and magnetic field's peculiar traits.
Researchers propose that Jupiter may have 'jumped' out of its orbit to avoid disturbing the inner solar system. The 'jumping-Jupiter' theory suggests one planet was ejected from the solar system, leaving four giant planets behind.
Researchers used simulations to determine ice VII's melting temperature in high-pressure conditions, finding a molecular solid phase below 450,000 atmospheres and a superionic solid phase above. This discovery opens up possibilities for water existing as a solid in Neptune, Uranus, and Earth's deep interiors.
For the first time since their discovery in 1977, astronomers have observed a Uranus ring crossing and detected significant changes in the rings' arrangement. The observations used advanced telescopes and revealed new details about the fine dust that permeates the rings, including a previously unseen outer ring.
The discovery of a blue ring around Uranus reveals similarities with Saturn's E ring, both associated with small moons. Researchers attribute the blue color to gravitational forces acting on dust particles that allow smaller ones to survive while larger ones are recaptured by the moon.
Astronomers have found a blue ring around Uranus, similar to Saturn's blue ring in Enceladus' orbit, attributed to submicron-sized material and subtle forces acting on dust particles. The discovery suggests that the two outer rings share a common explanation for their blue color.
Astronomers discover that Uranus' blue ring is predominantly made of submicron-sized material, unlike most other rings which appear red. The similarity between the outer rings suggests an in-kind explanation for their blue color.
The new Keck images capture unusual weather phenomena on Uranus, including a big southern hemisphere storm feature that seesaws over 5 degrees of latitude. The complex cloud formations vary dramatically in size, brightness, and longevity, with some dissipating completely within a month.
Recent Keck Telescope images of Uranus reveal an inner ring and high-altitude clouds with vigorous convection, indicating the planet is not static. The findings contradict previous assumptions about Uranus being a dull and unchanging planet.