Articles tagged with Circular Orbits
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
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.
Scientists have discovered a planet with a comet-like tail, shedding surface minerals and evaporating away due to its close proximity to its star. The planet is estimated to disintegrate in about 1 million to 2 million years, leaving behind a long and dusty tail.
Scientists detected a 'wisp' precipitation with peak intensity inside the South Atlantic Anomaly, a region of weaker geomagnetic field and higher energetic particle flux. Ground-based VLF transmitter in Australia scatters electrons into this 'wisp', which is characterized by its peak intensity outside the anomaly.
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.
A new study suggests that Betelgeuse's pulsing is due to an orbiting companion star known as the 'Betelbuddy'. The star acts like a snowplow, pushing light-blocking dust out of the way and making Betelgeuse appear brighter. Researchers used computer simulations to confirm this hypothesis, ruling out other possible causes.
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.
Scientists discovered that the Sahara Desert was greener during the time of Homo erectus' migration, allowing for a more hospitable passage. This discovery sheds new light on how early humans adapted to their environment.
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.
Astronomers have discovered an Earth-sized planet, LP 791-18d, with active volcanoes that could sustain an atmosphere, potentially allowing for liquid water and life. The planet's unique tidal locking creates a permanent day and night side, with the night side possibly experiencing condensation of water vapor.
Researchers attribute unusual radar properties to coherent backscatter opposition effect (CBOE) and ice surface irregularities. The CBOE model, improved by Hofgartner and Hand, can explain all icy satellite radar properties.
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 from Tokyo Institute of Technology have developed a novel Ka band dual circular polarization transmitter, reducing signal losses and increasing transmission efficiency. The design integrates adaptive impedance tuning and calibration techniques, enabling practical devices with improved power efficiency and wide-angle coverage.
Researchers propose a new mechanism for eccentric black hole mergers, suggesting that interactions between three black holes in a flat disk environment could lead to chaotic orbits. This finding challenges previous studies on the rarity of such events.
The article discusses how scientists at Beijing Institute of Technology Press Co., Ltd. used key orbit design technologies to achieve a 23-day journey of lunar sample return with the Chang'E 5 mission. The success relied on precise orbit designs for lunar orbit rendezvous and docking, precision landing, and inclination optimization.
Researchers at the SETI Institute have detected rare meteor showers caused by 4000-year-old comets. The Cameras for Allsky Meteor Surveillance project uses low-light video security cameras to measure meteors' trajectories and orbits, revealing nine parent bodies of previously unknown meteor showers.
A study by UCR astrobiologist Stephen Kane suggests that Venus was likely habitable a billion years ago due to its more circular orbit. The findings could provide insights into how the Earth became habitable and what went wrong for Venus, which now has surface temperatures of up to 800 degrees Fahrenheit.
Researchers at CU Boulder propose that 'detached objects' like Sedna may result from the collective gravity of these bodies and space debris in the outer solar system. Computer simulations suggest that these icy objects orbit the sun like the hands of a clock, with smaller objects moving faster than larger ones.
Researchers at UNIGE detected an exoplanet with a highly inclined orbit around a red dwarf star, evading circular motion and instead following a polar path. This unusual behavior is attributed to the presence of an unknown companion planet that disturbs its path.
A team of astronomers found that 74 Earth-sized exoplanets orbit their stars in circular patterns, contrary to expectations. This discovery suggests that small planets may maintain stable climates year-round, making them more hospitable to life.
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.
Astronomers have discovered the first triple asteroid system, 87 Sylvia, consisting of a large asteroid and two smaller moons, Romulus and Remus. The discovery reveals that the asteroids may be formed from debris left over from collisions between larger asteroids.
Researchers explain violent origins of extrasolar planetary behavior, citing planet-planet scattering as key factor. The study's findings suggest that strong instabilities led to the formation of highly eccentric orbits in multiple systems.
A team of British, Australian and American astronomers have discovered a planet similar to Jupiter in orbit around a nearby star, 3.3 times further from its star than Earth is from the Sun. The system's long-term precision allows for the detection of true analogues to our Solar System, advancing the search for systems like our own.
A team of astronomers has discovered a Jupiter-size planet in a nearly circular orbit around the nearby star 47 Ursae Majoris, located about 51 light years from Earth. The new planet is at least three-fourths the mass of Jupiter and orbits the star at a distance that would place it beyond Mars but within the orbit of Jupiter.
The NEAR Shoemaker spacecraft will embark on a series of low-altitude passes over asteroid 433 Eros from Jan. 24 to Jan. 28, gathering detailed images of the surface. The controlled descent, set for Feb. 12, aims to capture high-resolution close-ups of Eros' cratered landscape.
The NEAR Shoemaker spacecraft will swoop in for a record-breaking view of asteroid Eros, collecting data and images from just 5.3 kilometers above the surface. The low-altitude flyover will provide detailed information on the asteroid's shape and surface features.
The Near Earth Asteroid Rendezvous (NEAR) mission has successfully executed the first of three orbital correction maneuvers to bring its spacecraft closer to asteroid Eros. The spacecraft will make a gradual pass within 4 miles of the asteroid's surface, gathering high-resolution images and data on the asteroid's structure.
The NEAR spacecraft has obtained the first ever laser range returns from an asteroid and the first ever X-ray detection of an asteroid. High-resolution images show chains of craters, numerous boulders, and long ridges on the surface of asteroid Eros.
Guillermo Gonzalez argues that the Sun's exceptional characteristics made intelligent life emerge on Earth. The Sun is unusually massive and has a stable light output, making it an ideal place for life to thrive. This rules out over 95% of stars in the Galaxy as potential candidates.
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.