Astronomers have discovered a large amount of warm gas ejected in the Great Eruption of Eta Carinae, revealing an astonishingly different ultraviolet-light image. The newly revealed gas is important for understanding how the eruption began and could be used to study other stars and gaseous nebulas.
Researchers discover that some red giants contain less iron and more elements like magnesium and calcium, suggesting an ancient age. The study reveals that these stars may have merged with others during their transformation into red giants, explaining the apparent paradox.
Researchers study thiolate-protected gold-silver alloys, revealing intra-cluster and inter-cluster metal exchange that affects cluster stability and geometric structure. This understanding is crucial for harnessing novel physical and chemical properties of these clusters.
The Hubble Space Telescope has observed multiple supernovae in the spiral galaxy NGC 4051, revealing Type Ic supernovae produced by massive star core collapse. These events are scattered throughout the center and spiral arms of the galaxy.
A new study by Johns Hopkins researchers found that five-star hospitals offer fewer services compared to non-five star hospitals. Five-star hospitals are less likely to have emergency departments, intensive care units, and other specialized services.
Researchers found a star in the Milky Way Galaxy with low magnesium levels and high Europium levels, indicating it formed elsewhere, likely in a now vanished dwarf galaxy. The discovery suggests galaxy evolution models are supported by the presence of similar chemical signatures in other stars from dwarf galaxies orbiting the Milky Way.
A team of researchers discovered a grain of dust forged in a stellar explosion, challenging current theories about how stars seed the universe. The grain, LAP-149, is highly enriched in carbon-13, providing evidence that novae contributed to the building blocks of our solar system.
A team of researchers has discovered a stellar flare ten times more powerful than anything seen on our sun, erupting from an ultracool star almost the same size as Jupiter. The star, ULAS J224940.13-011236.9, is only a tenth of the radius of our own sun and is considered a brown dwarf by some definitions.
Astronomers have observed a unique X-ray signal from a binary neutron star merger 6.6 billion light years away, which is highly likely powered by a magnetar. This discovery provides new insights into the physics of neutron stars and challenges existing theories on the ending of a binary neutron star merger system.
Astronomers used asteroid occultations to measure the smallest apparent size of a star on the night sky, revealing the diameter of a giant star and a sun-like star. The new method provides ten times better resolution than standard lunar occultation methods.
Researchers discovered the diameter of a giant red giant star 2,674 light-years away and a sun-like star at 700 light-years, setting a record for the smallest star measured. The team used asteroid occultations to calculate the stars' sizes with high accuracy.
The Hubble Space Telescope has revealed a stunning image of Messier 3, a massive globular cluster containing over half a million stars. The cluster features 274 variable stars, including the rare RR Lyrae type, which can be used as standard candles to measure vast celestial distances.
Astronomers from the University of Warwick detected a heavy metal planet fragment orbiting a white dwarf, which is the remains of a dead star. The fragment, rich in iron and nickel, has survived a system-wide cataclysm that followed the death of its host star.
Researchers at Hokkaido University developed a computational approach to predict the behavior of clusters of molecules, enabling faster electronic devices with on/off switching and reversible conductivity. This method could lead to the creation of cluster molecular electronics, a new field of science.
Astronomers estimate that Messier 11 formed 220 million years ago and will disperse in a few million years as its stars are ejected by stronger gravitational forces.
Astronomers have uncovered one of the oldest star clusters in the Milky Way Galaxy using high-resolution adaptive optics imaging from the Gemini Observatory. The study reveals that the cluster is approximately 12.8 billion years old and provides new insights into galaxy formation.
Researchers observe two massive protostars forming a binary star system, separated by 180 astronomical units and orbiting each other every 600 years. The study suggests that the stars are formed from a common disk during the initial collapse of the cloud.
Astronomers have discovered a binary star system with PDS 27 and its companion just 4.5 billion km apart, making them the closest high-mass young stellar objects in binaries resolved to date. This discovery provides a valuable laboratory to test theories on high mass binary star formation.
Astronomers confirm the existence of a hot Jupiter-like planet, Kepler-1658 b, orbiting an evolved star. The discovery, led by University of Hawaii graduate student Ashley Chontos, provides new insights into planetary interactions and the rarity of planets around similar stars.
Researchers observed that massive stars losing mass to companion stars before exploding can create Type Ib or IIb supernovae. Stellar winds also play a role in the process, especially for high-mass stars.
Astronomers find that binary star interactions can expand the habitable zone, increasing the likelihood of life on planets. Simulations reveal that 20 out of 350 binaries in young star clusters are squeezed together, expanding their habitable zones.
A volunteer astronomer found an ancient white dwarf star, LSPM J0207, ringed by dust and debris. The discovery challenges current models of planetary systems and may provide insights into the distant future of our solar system.
Astronomers have discovered evidence of a gigantic remnant surrounding an exploding star, indicating that it erupts regularly on a massive scale for millions of years. The team found a super-remnant measuring almost 400 light years across, which is unusually large compared to other known nova systems.
A study of woodland star wildflowers found remarkable diversity in their scent compounds, with many species and populations producing unique floral bouquets to attract insect pollinators. The findings suggest that natural selection has shaped the biochemistry of floral scents in different ways among different populations.
A new study finds that a sea star wasting disease and warmer sea surface temperatures led to the dramatic decline of sunflower starfish in both nearshore and deep waters. This collapse has broader effects on kelp beds and other marine ecosystems.
Researchers led by Penn State astronomer Pragati Pradhan found that stellar winds, composed of protons, electrons, and metal atoms, contain dense clumps. The Chandra data revealed a 'Compton shoulder' indicating back scattering by surrounding matter, providing new insights into star environments.
Researchers measured temperatures of slow-moving gas atoms surrounding a star after an exploding star's shock wave, answering a long-standing question about their physical processes. The results confirm the relationship between atomic weight and temperature, settling an important issue in astrophysics.
Astronomers have detected a new component in the death of massive stars, linking gamma-ray bursts and hypernovae. The study reveals an additional hot cocoon generated around the jet, explaining differences between GRBs and hypernovae.
A Northwestern University-led team captures the exact moment a star collapsed to form a compact object like a black hole or neutron star, revealing evidence of an accreting black hole or neutron star. The event, known as AT2018cow, was detected in the Hercules constellation and emitted remarkable bright glow.
A new technique developed by Embry-Riddle researchers allows for the precise determination of star ages, reducing errors to 5% or less. The method leverages Gaia satellite data and considers factors such as surface temperature, atmospheric composition, and mass.
A new study by INSEAD researchers found that collaborating with a creative 'star' increases the chances of becoming a star and boosts innovators' creativity. Working alongside a star designer significantly enhances the ability to create breakthrough innovations through skills such as creative synthesis.
A Northwestern University-led team captures the moment a star collapsed to form a compact object, such as a black hole or neutron star. The team used multiple imaging sources and a comprehensive approach to study the object's makeup, finding evidence of hydrogen and helium.
Astronomers have observed a rare supernova that provides a unique glimpse into the physics of black hole or neutron star creation. The object, known as AT2018cow, is thought to be the formation of an accreting black hole or neutron star.
Researchers identified hydrogen-rich debris shed by a companion star, revealing it was likely a red giant or similar star that made its partner go supernova. This discovery sheds light on the types of companions that trigger Type Ia supernovae, which are used for cosmological studies.
Stellar winds from infant stars in the Orion Nebula disrupt the formation of new stars by blowing away seed material. The winds create a bubble that regulates physical conditions and influences star formation activity.
Astronomers have found the first evidence of a 'super-remnant' formed from repeated star explosions in the Andromeda Galaxy. The remnant measures almost 400 light years across and is associated with the most frequent nova explosions known, occurring once a year.
A massive stellar flare on a baby star has been spotted by University of Warwick astronomers, revealing how it could create the building blocks for future planets. The flare's x-rays are thought to affect the formation of chondrules, flash-melted calcium-aluminium-rich grains that eventually coalesce into orbiting planets.
Astronomers have found a way to illuminate the elusive nature of dark matter by analyzing intracluster light from six massive galaxy clusters in the Frontier Fields program. The faint glow between galaxies in a cluster traces the path of dark matter, providing a more accurate understanding of its distribution.
Astronomers have discovered a young star, Gaia 17bpi, undergoing a rare 'growth spurt' - a FU Ori stellar outburst. The event reveals insights into the development of these distant stellar objects and helps solve longstanding mysteries surrounding star formation.
Astronomers have discovered two stars, MM 1a and MM 1b, orbiting each other in the young star system. The team used ALMA to image the surrounding gas and dust discs, revealing a massive companion star with a mass ratio of 80:1.
Researchers have created updated climate models for the seven planets around TRAPPIST-1, revealing unexpected similarities and differences with our solar system. The study suggests that some planets may have evolved like Venus due to an extremely hot early stellar phase, while others could be habitable ocean worlds.
Researchers have discovered a binary star system containing massive Wolf-Rayet stars that are spinning extremely fast, producing incredibly fast winds. The system's wind speeds are 100,000 times quicker than a hurricane on Earth, while the surrounding dust cloud moves at a much slower pace, suggesting unequal gas distribution.
Researchers have discovered a new massive star system dubbed 'Apep,' featuring a slow-moving dust pinwheel that defies current theories on how large stars die. The system's unusual rotation is thought to cause the star to collapse at its poles before the equator, producing a gamma-ray burst.
Two teams of astronomers uncovered the presumed precursor star in pre-explosion photos taken in 2007, shedding light on stellar evolution and mass distribution. The discovery suggests two possible scenarios: a single massive star or a binary-star system.
Astronomers have discovered a rare gamma-ray binary system, allowing for the study of particle acceleration in a unique environment. The system, consisting of a massive star and a rapidly rotating neutron star, was detected emitting high-energy particles accelerated by its strong magnetic field.
Astronomers have found a candidate planet, named Barnard's star b, orbiting the red dwarf star every 233 days. The cold super-Earth is estimated to be around 3.2 times the size of Earth and has a temperature of -150°C.
Astronomers have discovered a planet, known as Barnard's star b, which orbits around its host star every 233 days. The 'super-Earth' is estimated to be a frozen world with surface temperatures of -170 degrees Celsius, but could potentially become more hospitable if it has a substantial atmosphere.
Astronomers at Carnegie Institution for Science have discovered a frozen Super-Earth orbiting Barnard's star, just six light-years from Earth. The planet has at least 3.2 times Earth's mass and orbits its star every 233 days at a distance where water would be frozen.
Astronomers have discovered a cold Super-Earth orbiting around the Barnard's star, which is about six light-years away from Earth. The planet candidate has a minimum of 3.2 Earth masses and orbits its red star every 233 days near the snow-line.
Astronomers detect a super-Earth orbiting Barnard's Star, with the planet having a mass at least 3.2 times that of Earth, and orbits its host star in roughly 233 days. The exoplanet lies close to the snow line, making it inhospitable for life as we know it.
Researchers found that the Wild Duck Cluster's stars are older than initially thought due to their rotational periods, which affect their hydrogen core mixing and lifetime. This discovery sheds light on how stars form and evolve, challenging previous assumptions about open clusters.
A team of UC Riverside-led scientists have made the best measurement yet of why star formation stops in galaxy clusters in the early universe. They found that it takes a galaxy longer to stop forming stars as the universe gets older, with quenching timescales varying across 70 percent of the universe's history.
A young star with a protoplanetary disc has been discovered to have four Jupiter and Saturn-sized planets in orbit around it. The system's extreme range of orbits raises questions about how such a system might have formed.
Researchers have discovered an ultra-stripped supernova, a rare type of supernova believed to play a role in forming binary neutron star systems. The discovery advances understanding of gravitational waves and the origin of precious metals.
A Caltech-led team observed a faint and rapidly fading supernova, suggesting the presence of an unseen companion gravitationally siphoning away the star's mass. The explosion resulted in a dead neutron star orbiting its dense companion, marking the first time scientists have witnessed the birth of a compact neutron star binary system.
Astronomers have observed a massive star's death, creating a compact neutron star binary system. The explosion was unusually faint and the star had an unseen companion that siphoned away most of its mass.
Researchers confirm collision of white dwarf and brown dwarf stars using ALMA observations. The debris from the explosion reveals the presence of lithium and unusual element isotopes.
Researchers have detected extremely high-energy gamma rays from the microquasar SS 433, which is located 18,000 light years from Earth. This discovery sheds light on astrophysical processes and may offer insights into star systems in distant galaxies.
The University of Konstanz has been awarded Excellence funding for two of its three cluster initiatives, including the Politics of Inequality: Perceptions, Participation and Policies and the Centre for the Advanced Study of Collective Behaviour. This success will enable the university to compete with top universities in Germany and sha...
The Friedrich Schiller University Jena has been granted funding for its Cluster of Excellence 'Balance of the Microverse', focusing on microbial communities and their impact on human health, environment, and climate change. The cluster aims to advance knowledge on microbiota dynamics and functions.