Articles tagged with Stars
A team of researchers has created a high-resolution map of the Ophiuchus molecular cloud, identifying 75 dense cores and finding that their masses follow a log-normal distribution. This suggests that turbulence plays a significant role in shaping the evolution of the cloud.
New research from UC Berkeley links positive emotions with lower levels of pro-inflammatory cytokines, which fight infection and disease. The study found that awe, wonder, and beauty promote healthier levels of cytokines, suggesting a direct influence on health and life expectancy.
A study suggests some galaxies may shoot out gas early, causing them to redden and die prematurely. Researchers found that four galaxies approaching the end of star formation had expelled most of their gas.
The University of Warwick's Next Generation Transit Survey (NGTS) aims to detect small planets from Neptune size down to twice the size of Earth. Researchers hope to study the atmospheres and composition of these super-Earths, which are thought to be common around other stars.
Researchers have created a unique map of enigmatic molecules in our galaxy, revealing their locations and environments. The study, led by Johns Hopkins astronomers, analyzed light from hundreds of thousands of celestial objects to detect the features of these mysterious molecules.
A study of Andromeda's stellar disk reveals a more disordered population than the Milky Way's, suggesting recent mergers with smaller galaxies. The researchers found that younger stars have relatively ordered rotational motion, while older stars display much more disordered motion.
The Hubble Space Telescope has captured the sharpest large composite image of the Andromeda galaxy, revealing over 100 million stars in a 61,000-light-year-long stretch. This panoramic view provides unprecedented insights into the galaxy's structure and evolution.
Astronomers have found evidence that the recipe for Earth applies to terrestrial exoplanets orbiting distant stars. The HARPS-North instrument measured the masses of small, Earth-sized worlds and found a tight relationship between mass and size, suggesting rocky compositions similar to those of Venus and Earth.
Astronomers witness billowing clouds of gas towering above and below the plane of our galaxy, driven by a titanic eruption in the galactic core. The Hubble Space Telescope measures velocity and composition of the mystery lobes, revealing unique information about the expanding gas.
Researchers found that stars in large middle-aged clusters are of similar age, suggesting a complex formation process. The discovery challenges current understanding of stellar evolution and may require re-evaluation of models.
Astronomers have successfully detected a super-Earth's transit using a ground-based telescope, marking the first time this has been done. The transit occurred in front of a bright Sun-like star and demonstrates that small planets can be characterized with existing facilities.
A team of astronomers successfully measured the passing of a super-Earth in front of a nearby Sun-like star using a ground-based telescope. The detection bodes well for characterizing dozens of super-Earths revealed by upcoming surveys.
Women's sport coverage in the UK press remains underrepresented, with only 5% of total sports coverage dedicated to women's sport. This marginalization leaves girls with fewer role models, resulting in lower participation rates and potential health problems related to obesity.
Researchers at Lomonosov Moscow State University developed a new method to estimate the magnetic field of an exoplanet. They successfully estimated the magnetic moment of the hot Jupiter HD 209458b, which is relatively small compared to Earth's magnetic field.
Scientists from the University of Tokyo have detected silicon and nitrogen-terminated carbon chain molecules in interstellar space using laboratory experiments. The discovery provides valuable information on the formation mechanisms of these molecules and their potential impact on understanding the chemical composition of the universe.
The European satellite Gaia is expected to detect tens of thousands of new planets within its five-year mission, revealing unique details about each planet's properties. The satellite's instruments will also capture the motion, physical characteristics, and distance of roughly 1 billion objects in the Milky Way galaxy.
The Hubble Space Telescope has observed the faint glow of stars ejected from ancient galaxies torn apart within the Pandora's Cluster. The scattered stars are estimated to contribute approximately 10% of the cluster's brightness and are rich in heavier elements.
Researchers at Johns Hopkins University found that massive black holes can block the formation of new stars in mature galaxies. The study suggests that these jets of radio-frequency feedback streaming from central black holes prevent hot gas from cooling and collapsing into baby stars.
Astronomers use a cosmic magnifying glass to spot a tiny, faint galaxy more than 13 billion light-years away. The discovery provides insight into the early universe and suggests that small, faint galaxies existed about 500 million years after the big bang.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf successfully tested a new model explaining how magnetic fields create astrophysical jets in young stars. The findings suggest that magnetic fields can focus plasma to form jets, potentially leading to breakthroughs in cancer therapy and medical engineering.
NOAA/NASA's Suomi NPP satellite provides critical information for aviators about volcanic hazards, enabling early warnings and reducing costly flight diversions. The satellite's VIIRS instrument detects thermal signatures and clouds associated with volcanic activity.
Researchers found a star with extremely low iron content, which could be evidence of the universe's first supernovae. The star's unusual chemical composition supports the theory that massive stars formed in the early universe and exploded as supernovae.
Research by Australian scientists reveals massive galaxies are eating smaller ones to gain weight, but their star-formation process is inefficient. Dr. Aaron Robotham explains that gravity allows larger galaxies to pull in smaller neighbors, and the Milky Way will follow suit, eventually merging with Andromeda.
Researchers have found a supermassive black hole at the center of an ultra-compact galaxy, M60-UCD1, with a mass of 21 million suns. This discovery suggests that these massive black holes are more common in less-massive galaxies than previously thought.
Simulations by NASA researchers found that atmospheric gases like ozone, oxygen, and methane can be produced non-biologically, challenging the detection of life. However, combinations of these gases remain strong biosignatures, suggesting their presence is likely linked to biological activity.
Researchers developed an adaptive optics microscope that can focus laser light through even the murkiest surroundings without a guide star. This innovation resolves points less than one thousandth of a millimeter across, enabling sharper images in biology and medicine.
Astronomers used computational simulations to show that rapid mixing in cloud formation creates uniform chemical composition among born stars, supporting the idea of 'chemical tagging' and potential discovery of Sun's siblings. The study also found that even clouds without many stars produce similar abundances.
Researchers confirm lithium-6 production in Big Bang energy range, contradicting observed lithium concentrations in stars. The study resolves the 'lithium problem,' a stubborn issue in astrophysics.
Case Western Reserve University astronomers will study the outskirts of spiral galaxy M101 using Hubble Space Telescope data. The research aims to determine how galaxies form over time, with findings that could challenge current understanding of galaxy formation.
A team of astronomers has created new maps of the interstellar medium in the Milky Way, revealing clues about the composition and distribution of mysterious complex molecules. The findings could provide insights into how stars form and the conditions that lead to their creation.
Researchers from Moscow Institute of Physics and Technology have reported detecting three possible occasions of star destruction by supermassive black holes at galaxy centers. Using data from X-ray orbiting observatories ROSAT and XMM-Newton, they identified three X-ray sources with significant dimming, suggesting the death of a star i...
Astronomers have discovered the most distant galaxy that acts as a cosmic magnifying glass, with a massive elliptical galaxy weighing 180 billion times more than our sun. The lensing effect offers insight into how young galaxies build themselves up into today's massive dark-matter-dominated galaxies.
A team of astronomers from RIT helped analyze data showing two elliptical galaxies coalescing in a dense galaxy cluster. The study reveals rare insights into elliptical galaxy mergers and finds a string-of-pearl star formation structure with 19 young blue clusters.
Astronomers have spotted an unusual structure in the universe, resembling a corkscrew-shaped string of pearls, that winds around the cores of two colliding galaxies. The discovery has sparked excitement among researchers, who are still trying to understand the physical processes behind this phenomenon.
Computer modeling by NASA scientists shows that friction could be key to survival for distant Earth-sized planets in dangerous orbits. Some planets may move into safer orbits faster than expected due to tidal stress-induced friction.
Astronomers have developed a method to distinguish between infant and adolescent stars based on their sound waves, with 'young' stars vibrating slower. This technique uses ultrasound technology similar to medical applications, offering new insights into star formation and evolution.
New observations from NASA's Hubble Space Telescope reveal small galaxies are responsible for forming a significant number of the universe's stars. This finding supports a decade-long investigation into the relationship between a galaxy's mass and its star-forming activity, providing new insights into the early universe's history.
A team of astronomers has identified a Wolf-Rayet star as the probable progenitor of a recently exploded supernova using flash spectroscopy. This technique allows for rapid identification of pre-explosion stars at greater distances than previously possible.
Researchers found a runaway star cluster named HVGC-1 in the M87 galaxy, moving at over two million miles per hour. The cluster was likely flung out of the galaxy by supermassive black holes at its core.
Researchers measured circular polarisation in the bright flash of light from a dying star collapsing to a black hole, giving insight into an event that occurred 11 billion years ago. This discovery challenges current understanding of Gamma-ray Bursts and suggests a more complex mechanism for their formation.
Researchers developed a new adaptive optics technology that rapidly corrects for light-bending distortions in microscopic images. The technique, inspired by astronomy and ophthalmology, brings into focus fine structures and subcellular organelles in nerve cells deep within living brain tissue.
The APF facility consists of a 2.4-meter telescope and the Levy Spectrometer, which Vogt designed and optimized specifically for planet hunting. Repeated measurement of a star's spectrum enables astronomers to detect the tiny wobble induced in a star by the gravitational tug of an orbiting planet.
Bob Hatcher, a renowned geoscientist at the University of Tennessee, has been awarded the Marcus Milling Legendary Geoscientist Medal. The honor recognizes his outstanding contributions to the field, including his research on continental crust evolution and community outreach efforts.
A team of astronomers discovered mature galaxies at a record-breaking distance, containing 100 billion stars each. These galaxies formed rapidly over 1 billion years, with star formation rates hundreds of times higher than observed today.
Researchers successfully captured an image of exoplanet Beta Pictoris b using a charge-coupled device (CCD) sensor in visible light, confirming its atmosphere is at 2600 degrees Fahrenheit. The achievement marks a significant step towards detecting habitable planets around other stars.
The spiral galaxy ESO 137-001 is zooming through the Norma cluster at nearly 4.5 million miles per hour, stripping gas from its home and forming new stars in intergalactic space. Astronomers hope that studying this galaxy can help them understand how galaxies form stars and evolve over time.
Researchers from the Niels Bohr Institute detected a stream of stars in Andromeda II, revealing a remnant of a merged dwarf galaxy. The findings provide insight into the rare event of low-mass galaxy mergers, which are expected during galaxy formation.
Researchers used computer simulations to explore the destruction of a star by a black hole, finding that hydrogen lines are highly ionized and don't appear in spectra. The study provides new insights into the origin of emission lines in tidal disruption events and sheds light on the role of accretion disks.
The discovery of the oldest known star in the Universe allows scientists to study its chemistry, providing a clearer idea of the early universe. The ancient star is around 6,000 light years from Earth and formed shortly after the Big Bang.
Numerical simulations charting the universe's forces in its first hundreds of millions of years reveal subtle effects governing galaxy evolution, including incomplete mixing and chaotic supernova ejections. The findings shed light on metal formation and distribution in the earliest galaxies.
NASA's Aqua satellite captured a final image of Tropical Storm Kajiki on January 31 as it made landfall in the Philippines. The storm weakened to a depression with maximum sustained winds near 30 knots/34.5 mph, displacing over 18,000 people.
A team of researchers has confirmed a long-standing puzzle about the birth of massive stars, showing that dense filamentary structures absorb ultraviolet radiation and shield surrounding gas. The findings provide new insights into how massive stars form and influence their host galaxies.
Researchers found that star radiation can push matter out of galaxies, accounting for the missing galactic mass in previous calculations. The FIRE simulations demonstrate that feedback from stars alters galaxy growth and history in a dramatic way.
A team of astronomers discovered a primordial galaxy, Himiko, seen at 800 million years after the Big Bang. The observations using Hubble and ALMA revealed intense star formation, but puzzlingly low metal content, challenging current star formation theories.
The Hubble Space Telescope has revealed a glittering treasure trove of more than 800,000 stars and protostars embedded inside the Tarantula Nebula. The observations were obtained as part of the Hubble Tarantula Treasury Program, which will produce a large catalog of stellar properties.
New measurements of mass reveal that planets smaller than Neptune have low density due to extensive gas coverage, while larger ones have higher density. This suggests these planets formed quickly after their star's birth, contrasting with Earth's late formation.
Researchers used data from the Sloan Digital Sky Survey to discover measurable shifts in giant gas clouds around galaxies in a span of just five years. The findings suggest that these clouds are much smaller than previously thought, with implications for how galaxies form and evolve over time.
A team of scientists led by UC Riverside astronomers used Hubble to discover 58 young, diminutive galaxies in ultraviolet light, which are 100 times more numerous and 100 times fainter than detected galaxies. These 'unseen' galaxies formed most new stars during the universe's early years.
The Gemini Planet Imager has successfully captured its first light images of exoplanets, allowing scientists to study their atmospheres and characteristics in unprecedented detail. The instrument's advanced technology enables it to detect planets that are millions of times fainter than their parent stars.
The Gemini Planet Imager has captured its first light images, revolutionizing the field of exoplanet detection and study. The instrument's advanced adaptive optics system allows for direct imaging of faint planets, including those 1 million to 10 million times fainter than their host stars.