Articles tagged with Orbital Eccentricity
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Mars plays a measurable role in shaping Earth's long-term climate patterns, including ice ages, through its gravitational influence and orbital cycles. The study suggests that Mars' presence is necessary for the existence of major climate cycles, which have driven evolutionary changes on Earth.
Researchers seek to understand the origin of eccentric warm Jupiters, which are thought to have complex formation processes. Building on precise data from NASA's Transiting Exoplanet Survey Satellite, scientists aim to develop new models and update existing ones to shed light on these planetary outliers.
Researchers have identified undetectable asteroids orbiting Venus that could collide with Earth in the distant future. The asteroids' low eccentricity makes them invisible from ground-based observatories, but simulations suggest they pose a real risk of devastating impacts on large cities.
Researchers measured exoplanet orbits, finding small planets have nearly circular orbits while giant planets have more elliptical orbits. This discovery points to two different formation pathways for small and large planets.
SwRI scientists measure tidal dissipation on Titan by analyzing the planet's spin axis rotation, revealing a recent event that affected its orbit. The study suggests that Titan's noncircular orbit is due to a perturbation within the past 350 million years.
A landmark survey has imaged exocomet belts around 74 nearby stars, revealing their structure and location. The study provides new insights into the evolution of planetary systems, including the existence of large, undetectable planets that affect the distribution of pebbles in these systems.
Scientists reveal that the Antarctic ice sheet is more unstable than previously thought, with periods of sudden melting linked to changes in Earth's orbit. The study provides a glimpse into the potential behavior of Antarctica without the Greenland Ice Sheet, highlighting the urgent need for climate action.
A team of astronomers has discovered an exoplanet with an elongated and backwards orbit, which holds clues to the formation history and future trajectories of high-mass gas giants. The exoplanet, named TIC 241249530 b, is approximately five times more massive than Jupiter and orbits its host star in a highly eccentric path.
Astronomers at MIT and Penn State have discovered a new 'progenitor' of hot Jupiters, a highly eccentric planet with an orbit providing clues to its evolution. The planet, TIC 241249530 b, is expected to become a scorching hot Jupiter in about 1 billion years.
A new rocky planet, TOI-6713.01, has been found to be covered with active volcanoes, making it glow with a fiery, glowing-red hue. The planet's surface temperature reaches 2,600 degrees Kelvin due to gravitational forces that cause it to experience tidal energy.
Researchers investigate geologic features on icy moons, revealing mechanisms behind strike-slip faults. Studies on Titan and Ganymede provide insights into potential environments conducive for life emergence.
A Southwest Research Institute-led team modeled the early impact history of Venus to explain how it maintains a youthful surface despite lacking plate tectonics. The findings suggest that higher-speed, higher-energy impacts created a superheated core that promoted extended volcanism and resurfaced the planet.
New analysis reveals that two-thirds of planets around small stars could be sterilized by tidal forces, leaving one-third with potentially habitable zones. Hundreds of millions of promising targets have been identified for future studies.
A new study suggests that Earth's habitability could increase if Jupiter's orbit becomes more eccentric, leading to parts of the surface warming up and becoming habitable for multiple life forms. The researchers also found that this change in Jupiter's orbit could have implications for the search for habitable planets around other stars.
Researchers confirm a rare and massive black hole merger with an eccentric orbit, shedding light on the formation of supermassive black holes in dense star clusters. The study's findings have significant implications for our understanding of black hole dynamics and the evolution of galaxies.
The study of XO-3b reveals stronger seasonal variations than Earth's, with temperatures reaching 2,000 degrees C. The planet's oval orbit and high surface temperatures suggest a history of migration toward its parent star.
Astronomers used computer simulations to explore the evolution of high-mass planetary systems, finding that collisional growth and gravitational interactions lead to eccentric orbits. The models suggest a crucial role for giant impacts in producing close-in giant planets with high masses.
Scientists have documented a 405,000-year climate cycle in ancient rocks, which repeats every 405,000 years and plays a role in natural climate swings. The cycle is believed to result from a complex interplay with the gravitational influences of Venus and Jupiter.
Researchers found a potential bridge between Martian geology and atmospheric models, suggesting peak daily temperatures above freezing could cause melting at glacier edges. This meltwater could have carved the features observed on Mars today, supporting the formation of water-carved valleys and lakebeds.
A recent study found that wide binary stars in planetary systems can lead to dramatic events over time. In one hypothetical system, at least one of four giant planets was ejected in almost half of the simulations. The researchers also discovered substantial evidence that this process occurs regularly in known extrasolar planetary systems.
Astrophysicists found that wide binary stars have a significant impact on planetary systems, causing violent disruptions and scattering planets. The researchers conducted computer simulations and found that planets in these systems are often ejected to interstellar space.
The study of co-orbital motion in natural bodies, including asteroids and satellites, has significant research value. The authors have developed a new method to design and optimize LISA orbit with an extended applicable region of over 1000 years.
Six new planets have been discovered orbiting nearby stars, bringing the total number of known planets outside our solar system to 28. The newly discovered planets are located within the habitable zones of their stars and have temperatures suitable for liquid water to exist in one case.
An asteroid approximately 30-50 metres across has been discovered in an orbit close to Earth's, likely originating from the Moon. The object's unusual nearly circular orbit is unlike most comets and asteroids that cross the Earth's orbit.
Astrophysicists at MIT propose that newly discovered planets in Jupiter-sized systems underwent violent instability upon formation. This instability can lead to the ejection of one planet and a smaller, eccentric orbit for another, with potential consequences for planetary system evolution and intelligent life.
A new planet has been discovered around the star 16 Cygni B with an orbital eccentricity of 0.6, unlike any other known planet in our Solar System. This extreme oblong shape indicates the planet experiences significant variations in heat energy as it orbits its host star.