A new USF study identifies several viruses associated with Karenia brevis, the single-celled organism causing red tide. The finding marks an initial step toward exploring viruses as biocontrol agents for red tide blooms.
Astronomers have discovered entwined dwarf stars emitting radio pulses, challenging the long-held assumption that only neutron stars were responsible for these emissions. The discovery was made using follow-up observations of two stars orbiting each other every two hours.
An international team has traced radio pulses to a binary system with a dead star, where a red dwarf and white dwarf orbit each other, emitting a radio blast every two hours. This discovery shows that the movement of stars within a binary system can also emit long-period radio bursts.
A team of astronomers has discovered four mini-Earth exoplanets around Barnard's Star, the nearest single star to Earth. The exoplanets are rocky and orbit their home star in a matter of days, with one being the least massive planet discovered using radial velocity technique.
Researchers found no clear evidence that red wine mitigates cancer risk, and instead observed a distinction in skin cancer risk. White wine consumption was associated with an increased risk of skin cancer compared to red wine, particularly among women. Heavy wine consumption may correlate to high-risk behaviors.
Astronomers observe an ultra-hot nova, LMC68, using Gemini South's FLAMINGOS-2 instrument, detecting ionized silicon atoms. The signal is unprecedented, shining up to 100 times brighter than the Sun. This is the first near-infrared spectroscopic observation of an extragalactic recurrent nova.
The study reveals a dynamic ecosystem with diverse dwarf galaxies, unlike the Milky Way's smaller satellite system. Hubble's observations provide insights into how small-galaxy growth is affected by massive galaxies like Andromeda.
The Dark Energy Spectroscopic Instrument (DESI) has discovered a treasure trove of actively feeding black holes in small galaxies, revealing surprisingly few are of intermediate mass. The team identified 300 new intermediate-mass black hole candidates and 2500 active black holes in dwarf galaxies.
A new dataset of nearly 4,000 nearby supernovae has revealed a surprising diversity in the explosive transients of white dwarf stars, with multiple exotic ways they can blow up. These discoveries have implications for measuring distances in the Universe and understanding dark energy.
Researchers found that white dwarf exoplanets could have more habitable surface area than previously thought due to their fast rotation periods. The study suggests these stars may present new avenues for exoplanet and astrobiology research.
Researchers found that anthocyanin in wind-pollinated tree stigmas protects pollen germination and growth by scavenging reactive oxygen species. This adaptation helps protect exposed reproductive parts from sun damage.
The Hubble Space Telescope has captured a cosmic bullseye, revealing eight visible rings and confirming a ninth using data from the W. M. Keck Observatory in Hawaii. The galaxy's unique ring structure was formed by a blue dwarf galaxy colliding with its center, creating a new generation of stars.
Two new celestial objects have been confirmed using Gaia data, including a Super-Jupiter exoplanet and a brown dwarf. The discovery challenges current theories of planet formation and provides valuable data for understanding these intriguing objects. Gaia's ongoing mission will uncover hundreds of planets and brown dwarfs around nearby...
Researchers discovered organic molecules on Ceres' surface but found no evidence of volcanic or tectonic activity. The deposits are thought to have originated from impacts by outer asteroid belt bodies, which could have introduced building blocks of life.
A team of astronomers has obtained detailed images of a small galaxy and its surroundings, revealing features typically associated with larger galaxies. The study found that the mechanisms fueling galaxy growth may be more universal than previously thought, suggesting that even dwarf galaxies can build stellar halos through accretion.
A study published in Neurology found that eating more processed red meat is associated with a higher risk of dementia and cognitive decline. Replacing it with healthier alternatives like nuts, fish, and poultry may reduce the risk.
Astronomers discovered three ultra-faint dwarf galaxies in an isolated region of space, containing only very old stars. The findings support the theory that events in the early universe cut off star formation in small galaxies.
Researchers have discovered three tiny ultra-faint dwarf galaxies, dubbed 'stellar-ghost-town' galaxies, with minimal gas and old stars. This suggests that their star formation was cut off early in the universe's history due to insufficient gravity or events like reionization or supernovae explosions.
Astronomers have observed the same supermassive black hole exhibiting unprecedented behavior, with X-ray flashes increasing in frequency over two years. The source of these flashes is believed to be a spinning white dwarf core orbiting around the black hole's edge.
A recent study analyzed data from over 6,500 contestants across 16 major international tournaments and found that wearing red had no significant impact on winning outcomes. The researchers believe the 'red advantage' has faded due to changes in tournament rules and technology-driven scoring systems.
A new study reveals that US adults who choose not to eat red meat are more concerned with environmental impacts than health risks. The survey of over 7,500 adults found that demographics such as age, education level, and income also played a role in red meat consumption.
Researchers have designed a new strategy for creating pure-red organic light emitting diodes (OLEDs) with improved efficiency and color purity. The molecule BNTPA achieves record-breaking external quantum efficiency, making it suitable for next-generation high-definition displays and energy-efficient lighting systems.
Red squirrels adapt their diurnal activities to minimize predation risk from domestic cats, while avoiding humans and wildlife. During COVID-19 lockdowns, they increased activity in gardens with food sources.
Researchers at St. Jude Children's Research Hospital identified a key role for glutamine in red blood cell development and disease. Glutamine metabolism plays a critical role in removing toxic byproducts, such as ammonium, that can accumulate during heme production.
A University of Washington-led study suggests that rocky planets orbiting M-dwarf stars can maintain stable atmospheres over time, enhancing the chances of supporting life. The James Webb Space Telescope has observed hotter planets without significant atmospheres, but temperate planets in the 'Goldilocks zone' may have stable atmospheres.
Astronomers at Caltech have discovered that the well-studied brown dwarf Gliese 229B is actually a pair of tightly orbiting brown dwarfs weighing about 38 and 34 times the mass of Jupiter. This resolves the long-standing mystery about its dimness.
Huskisson and Freeman are characterizing the gastrointestinal health of red pandas by measuring short-chain fatty acid (SCFA) concentrations. They aim to pinpoint differences in healthy and mucoid/loose stools.
A team of astronomers discovered a planetary system that resembles the sun-Earth system, with an Earth-size companion in an orbit twice as large as Earth's today. The discovery provides insight into the evolution of main sequence stars and their impact on planets.
Astronomers using NASA's Hubble Space Telescope discovered that the blowtorch-like jet from a supermassive black hole at the core of a huge galaxy causes stars to erupt along its trajectory. The finding suggests that there is something missing from our understanding of how black hole jets interact with their surroundings.
Research finds high levels of inbreeding in Lassen and Sierra Nevada red fox populations, highlighting genetic rescue as a viable option for restoration. The study also reveals the potential for reconnection with neighboring populations to increase adaptive potential.
A study by Kumamoto University researchers reveals that ApoE plays a crucial role in promoting hematopoietic stem cells to produce more red blood cells in response to acute anemia. This mechanism differs from the previously known pathway and may pave the way for new treatments for patients with severe anemia.
A new study reveals that palaeolithic hunter-gatherers on Cyprus are responsible for the disappearance of two species of megafauna: dwarf elephants and hippos. The research suggests that these small human populations could have driven both species to extinction due to their hunting practices.
A study has revealed the genetic drivers of red pigmentation in apple flesh, highlighting the critical role of anthocyanins and flavan-3-ols. By mapping quantitative trait loci across diverse apple families, researchers identified key genetic regions linked to this vibrant coloration.
Red blood cells undergo a regulated process of removal to prevent premature ageing and potential health issues. The study highlights the role of proteins in regulating this process, paving the way for novel therapeutics and early diagnostics for anaemia.
A recent USGS study found that red-backed salamanders have higher densities and biomass than expected, playing a key role in terrestrial temperate ecosystems. The discovery suggests that salamanders are more prevalent than previously suspected, and their disappearance could have significant ecosystem-level consequences.
Researchers have discovered that far-ultraviolet radiation from stellar flares on red dwarf stars can be three times more energetic than previously thought. This finding challenges existing models of exoplanet habitability and suggests that many stars may pose a risk to the potential for life on planets around them.
Researchers identified AcMYB266 as a crucial transcription factor governing the red coloration in pineapple peels. The study provides new insights into the genetic mechanisms behind fruit peel pigmentation, offering valuable insights for breeding high-quality red-skinned pineapple varieties.
A team of astronomers used NASA's Hubble Space Telescope to create the most accurate three-dimensional understanding of stars' movements within the Draco dwarf galaxy. This allowed them to build a more precise model of dark matter distribution, which aligns with cosmological models and suggests a cusp-like structure.
The Great Red Spot on Jupiter has persisted for at least 190 years, with its formation likely occurring after the 17th-century astronomer Giovanni Domenico Cassini's observation. The spot's longevity is due to an instability in Jupiter's intense atmospheric winds, producing a long-lasting atmospheric cell.
Four transiting short-period mini-Neptunes orbiting red dwarfs have been discovered, with radii 2-3 times that of Earth and orbital periods under eight days. Their interiors likely contain volatiles and atmospheres, suggesting non-rocky composition.
Astronomers have used Hubble and SOFIA to study the HM Sge binary star system, which experienced a sudden increase in brightness 40 years ago. The team has found that the system's temperature has increased, but paradoxically faded slightly, raising questions about its long-term behavior.
Astronomers have discovered a temperate, Earth-size world orbiting a small red dwarf star called Gliese 12. The planet, named Gliese 12 b, has a surface temperature of around 107 degrees Fahrenheit and receives about 1.6 times more energy from its star than Earth does.
The newly discovered SPECULOOS-3b is an Earth-sized, likely airless planet orbiting a nearby ultracool dwarf star. The planet's extremely close proximity to its star has likely vaporized any atmosphere, allowing scientists to study its surface composition and history in unprecedented detail.
The discovery of SPECULOOS-3 b is the second of its kind around an ultra-cool dwarf star and offers opportunities for life on orbiting planets to develop due to the star's long lifespan. The planet takes 17 hours to complete an orbit, making days and nights endless.
The SPECULOOS project has discovered an Earth-sized exoplanet around SPECULOOS-3, a nearby ultra-cool dwarf star. The planet, named SPECULOOS-3 b, is similar in size to our own planet and orbits the star in just 17 hours, resulting in constant day and night conditions.
Researchers have discovered three of the oldest stars in the universe, forming between 12 and 13 billion years ago. The team believes these 'Small Accreted Stellar System' (SASS) stars originated from small primitive galaxies absorbed by the Milky Way.
Researchers found that medieval English red squirrels served as a host for leprosy-causing bacteria, which circulated between humans and animals during the Middle Ages. The discovery highlights the importance of studying animal hosts in understanding disease transmission and persistence.
Researchers found that white dwarfs continuously consume smaller objects in their path, explaining the presence of heavy metals on their surface. The 'natal kick' during formation alters the dynamics of surrounding material, causing comets and asteroids to become elongated orbits and move as one coherent unit.
Researchers led by Jackie Faherty detected methane gas and temperature inversions on W1935, a cold brown dwarf. The findings suggest possible aurorae similar to those on Jupiter and Saturn, possibly due to an active moon.
Researchers observed a newly formed brown dwarf using ALMA and found spiral and streamer structures, suggesting chaotic interactions during formation. Simulations support two models: one involving collisions of collapsing clumps and another with the role of magnetic fields.
Researchers found that dwarf rock-wallabies have adaptations to harder biting, including shorter snouts and teeth positioned at the back of the jaw. They also discovered that some tiny species of rock-wallaby have the largest molars, which enable them to eat similar foods as relatives that are eight times larger.
A team of scientists detected the tiniest 'starquakes' ever recorded in the smallest and coolest dwarf star, Epsilon Indi. The detection was made possible by the ESPRESSO spectrograph at the European Southern Observatory's VLT, allowing for unprecedented precision levels.
ZmCPK39 regulates plant height by interacting with auxin signaling, while ZmKnox2 modulates plant growth through its interaction with calcium-dependent protein kinase, leading to dwarf or semi-dwarf varieties using genome editing technology.
Researchers linked red/processed meat consumption to increased colorectal cancer risk, highlighting two genetic markers (HAS2 and SMAD7) that alter cancer risk levels based on meat intake. The study analyzed data from nearly 70,000 people and found a 30-40% increased risk for those with high red or processed meat intake.
Researchers propose a new theory explaining how some white dwarfs remain hot for billions of years, contradicting the standard picture of cooling. The theory suggests buoyant crystals form in the star's interior, disrupting its cooling process and releasing gravitational energy.
A team of researchers discovered that some white dwarf stars stopped cooling due to the formation of floating crystals, which displace heavier material and release gravitational energy. This phenomenon challenges the traditional view of white dwarfs as 'dead stars' and requires a revision of astronomy textbooks.
Researchers have discovered a unique signature of planetary material ingestion on the surface of a white dwarf star, WD 0816-310. The team observed a concentration of metals imprinted on the star's surface, indicating that the magnetic field played a key role in this process.
Researchers found evidence of hydrothermal or metamorphic activity within the icy dwarf planets Eris and Makemake, which have methane deposits with geochemical origins. The discovery suggests elevated temperatures in their rocky cores, potentially leading to liquid water and habitability.
A new study finds that red-colored agricultural nets are more effective at deterring onion thrips than traditional black or white nets. The use of red nets resulted in a 25-50% reduction in insecticide applications, making them a promising solution for sustainable agriculture.
Scientists at Max-Planck-Institut für Eisenforschung have developed a method to produce green steel from toxic red mud using an electric arc furnace and hydrogen plasma, potentially saving 1.5 billion tonnes of CO2. The process is also economically viable, requiring only 30-40% iron oxide in the red mud.