New observations by Hubble reveal a massive dust cloud formed when superhot plasma was unleashed from an upwelling of a large convection cell on the star's surface, blocking light from about a quarter of Betelgeuse's surface.
Researchers discovered that the unexpected dimming of supergiant star Betelgeuse was most likely caused by an immense amount of hot material ejected into space, forming a dust cloud that blocked light from about a quarter of the star's surface. The resulting dust cloud led to the star returning to normal brightness in April 2020.
Astronomers have discovered a Saturn-sized planet orbiting a small, cool star 35 light-years from Earth using the astrometric technique. The planet has a mass comparable to Saturn and orbits its star every 221 days. This discovery is significant as it reveals that smaller planets can exist around cooler stars.
Astronomers have discovered an exoplanet, K2-25b, that is surprisingly dense for its size and age, defying current planet formation theories. The exoplanet, orbiting a young star in the Hyades cluster, has a mass of 25 Earth-masses and a size slightly smaller than Neptune.
Astronomers have found a strange dismembered star cluster at the galaxy's edge, with lower quantities of heavier elements than other globular clusters. The discovery poses significant problems for current ideas on globular cluster origins.
A team of astronomers discovered a stellar stream composed of the remnants of an ancient globular cluster torn apart by the Milky Way's gravity 2 billion years ago. The Phoenix Stream is distinct from other globular clusters and suggests that there may be no minimum abundance of heavier elements required for their formation.
Researchers propose a simple model explaining galaxy quenching, attributing it to central black hole 'feedback' that disrupts gas supply. The model reveals that larger galaxies evolve further before their black holes can grow large enough to quench star formation.
A team of scientists from the University of Warwick has discovered a white dwarf star that survived a partial thermonuclear supernova explosion. The star, SDSS J1240+6710, is traveling at an incredible velocity of 900,000 km/h and has a low mass consistent with the loss of mass during the explosion.
A new study published in JNCI Cancer Spectrum found significant disparities in cancer mortality rates between one-star and five-star hospitals. The research examined 105,823 patients who underwent complex cancer procedures at 3,146 hospitals between 2013 and 2016.
A team of international scientists discovered an asymmetrical double neutron star system, which could provide vital clues about the expansion rate of the universe. The finding uses the National Science Foundation's Arecibo Observatory's powerful radio telescope and builds upon a 2017 LIGO/Virgo discovery.
Astronomers detected a massive star in the Kinman Dwarf galaxy that vanished without producing a supernova. Theories suggest the star may have collapsed into a black hole or been transformed by dust, challenging current understanding of massive star deaths.
KELT-9 b experiences two summers and two winters every year due to its unique polar orbit around an extremely hot star. The planet's atmosphere streams away into space as it receives 44,000 times more energy from its star than Earth does from the Sun.
Astronomers have discovered an infant planet, AU Mic b, orbiting a 25-million-year-old star in the solar system. The planet, about the size of Neptune, takes only eight and a half days to complete one orbit around its host star, AU Microscopii.
Scientists have discovered a planet about as large as Neptune that orbits the young star AU Mic in just over a week, providing valuable insights into planetary formation and evolution. The planet, named AU Mic b, was detected using data from NASA's Transiting Exoplanet Survey Satellite (TESS) and retired Spitzer Space Telescope.
Researchers observed an accreting neutron star entering an outburst phase, studying its structure and material movement. The observation revealed a 12-day process, contradicting previous theories of two- to three-day timescales.
Astronomers found that stars in the cluster's periphery have planet-forming dust clouds, while those near the center lack them. The observations suggest that location plays a crucial role in planet formation, and massive stars may alter disk properties, making it harder for planets to form.
A three-year study of Westerlund 2, a massive young star cluster, reveals that the material surrounding stars near the centre is mysteriously devoid of dense clouds of dust. This is caused by the brightest stars eroding and dispersing the discs of gas and dust of neighbouring stars.
Researchers at Anhui University and Nanjing University successfully constructed 1D linear chains, 2D grid networks, and 3D superstructures from Ag29(SSR)12 nano-building blocks. The hierarchical self-assembly enables remarkable optical absorptions and gas storage properties in the assembled frameworks.
Astronomers have measured the stellar obliquity of TRAPPIST-1, a very low-mass star, and found it to be low and close to zero. This is the first detection of this effect for an exoplanet system with Earth-like planets, suggesting that planetary orbits may not be misaligned with star rotation.
Researchers at Special Astrophysical Observatory and Kazan Federal University studied the globular cluster NGC 6652 and found its age to be approximately 13.6 billion years. This discovery challenges the long-held assumption that younger galaxies are more metal-rich, revealing a complex history for this ancient object.
The James Webb Space Telescope will survey the Trapezium Cluster in the Orion Nebula to understand how young stars and planets form. The team will study the distribution of masses, planet formation phases, and jets from young stars, shedding light on stellar nursery riddles.
Researchers at the University of Sheffield have discovered a pulsating ancient star in a double star system, allowing them to study the internal structure of a white dwarf in detail for the first time. The discovery provides key insights into the structure, evolution, and death of white dwarf stars, including their composition.
Researchers at Georgia Institute of Technology have developed a new skin treatment using microscopic STAR particles that can deliver drugs directly to affected areas. The treatment, which involves rubbing the particles on the skin, has shown promising results in inhibiting tumor growth in mice.
Astronomers have discovered a one-sided pulsator in the Milky Way, with citizen scientists providing crucial clues. The star's unusual single-sided pulsation is caused by its location in a binary star system with a red dwarf companion.
Astronomers using ALMA captured the moment when an old star starts to alter its environment, ejecting high-speed bipolar gas jets. The team's findings help scientists understand how complex shapes of planetary nebulae are formed.
Astronomers have discovered a rare opportunity to study the evolution of a planetary system, with the DS Tuc binary system providing insights into how planets form without being heavily impacted by external forces. The findings suggest that the planet DS Tuc Ab formed through relatively calm processes.
Researchers from Tokyo Tech and ERATO Japan Science and Technology have synthesized clusters of gallium in solution, demonstrating the effects of changing atom numbers on cluster properties. The study shows that structural changes can be induced in superatoms, enabling the design and preparation of new building blocks.
Astronomers will use transmission spectroscopy and phase curves to observe the atmospheres of seven rocky planets in the TRAPPIST-1 system. The goal is to determine if these planets have atmospheres and what they're made of, which could help find out if life as we know it could survive on these distant worlds.
A new study found that cluster headaches can lead to significant disruptions in daily life, with people missing an average of 16 sick days and 63 disability days per year. The study also revealed sex differences in the impact of cluster headaches on work capacity, with women experiencing more frequent and longer-lasting symptoms than men.
Researchers have discovered that tidal effects from a close binary companion can cause a star to spin fast enough to launch material into space, forming a gamma-ray burst. This phenomenon is necessary for creating the most luminous events in the universe, observable from Earth when their jet of material is pointed directly at us.
A Princeton-led team of astrophysicists has shown that WASP-12b, a 'hot Jupiter' exoplanet, is spiraling inward toward its host star due to tidal forces. This process converts the planet's orbital energy into heat within the star, causing it to dissipate rapidly.
Researchers at USC Viterbi School of Engineering discovered how sea stars synchronize their motion through a global directionality command and localized responses to stimuli. This decentralized nervous system can inspire more efficient robotics systems with hierarchical learning and communication.
LSU astronomers predict that binary star V Sagittae will become the brightest in the Milky Way galaxy, outshining Sirius and Venus, around 2083. The star is currently faintly visible but will brighten rapidly due to its rapid orbital decay.
NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered its first Earth-size planet in its star's habitable zone, TOI 700 d. The planet orbits a small, cool M dwarf star located just over 100 light-years away and is thought to be rocky with surface temperatures suitable for liquid water.
Astronomers using TESS data have discovered that Alpha Draconis, a well-studied binary star system, regularly undergoes eclipses. The brief eclipses last only six hours and provide an opportunity to measure the masses and sizes of both stars with high accuracy.
A study found that cluster headache attacks exhibit a dynamic circadian and seasonal pattern, with changes in the attack timing throughout the disease course. Patients with more lifetime bouts showed a less variable pattern compared to those without circadian rhythmicity.
Researchers are exploring how cover crops can enhance the sustainability of star fruit farms in Florida. By incorporating cover crops like sunn hemp and velvet bean into their practices, farmers can improve soil organic matter and reduce the need for synthetic inputs.
The James Webb Space Telescope will study the smallest, faintest residents of NGC 1333, distinguishing between objects that form like stars and those that form like planets. The team aims to identify cluster members as puny as Jupiter for the first time ever, shedding light on their origins and the star formation process.
Scientists have discovered a unique neutron star with an apparent magnetic field structure that manifests itself under specific angles relative to the observer. The study provides insight into the internal structure of the magnetic field, contradicting earlier assumptions and revealing new properties of neutron stars.
Astronomers have found evidence of a giant planet surrounding a small, dead white dwarf star, providing insight into the evolution of our own solar system. The discovery suggests that many other planets may be hiding in similar extreme environments.
Researchers using ESO's Very Large Telescope have discovered a giant planet orbiting a hot white dwarf star, stripping away its atmosphere to form a disc. The system's unique properties provide clues to the composition of exoplanet atmospheres and challenge our understanding of planetary systems' final fate.
Researchers detected tera-electron volt radiation in the afterglow of GRB 190114C, a gamma-ray burst from a dying star. This validated their predictions and provided new insights into the extreme environment of gamma-ray bursts.
Scientists using the MeerKAT radio telescope have discovered a unique and previously-unseen flare of radio emission from a binary star system. The source is thought to be associated with an active corona, where two objects orbit each other approximately every 22 days.
Astronomers used TESS data to study two red-giant stars, one of which has a planet that shouldn't have survived its host star's expansion. The team found the planet's orbit may have been disrupted by the star's tidal forces, leading to an interesting case of planetary evolution.
Astronomers discovered ultrafast star S5-HVS1, ejected by supermassive black hole Sagittarius A* five million years ago. The star travels ten times faster than most stars in the Milky Way, with a speed of 6 million km/h.
Researchers have successfully created a large-scale quantum processor made entirely of laser light, providing a scalable solution to overcome current limitations in quantum computing. The design allows for the generation of a massive two-dimensional cluster state with built-in scalability.
The Clin-STAR Coordinating Center, led by AFAR, will promote and enrich the career development of clinician-investigators across specialties and disciplines. The center aims to improve care for older adults through a multi-faceted national platform, leveraging the expertise of four principal investigators from Johns Hopkins, UCSF, Yale...
Researchers detected individual filaments of intergalactic gas in a newly forming cluster, providing insight into the Universe's evolution and galaxy formation. The analysis found that these filaments are arranged like long threads, extending over one million parsecs, and fueling star formation and super massive black hole growth.
A giant exoplanet has been found orbiting a small star, GJ 3512, which is unusual because low-mass stars should have less material to form planets. The discovery was made using the Doppler technique and suggests the presence of another massive planet that may have been ejected from the system.
Astronomers discovered a giant Jupiter-like exoplanet orbiting a small red dwarf star, defying standard planet formation theories. The exoplanet, GJ 5312b, is nearly half as massive as Jupiter and orbits the tiny star with an eccentric 204-day orbit.
Researchers propose that Tabby's Star is experiencing long-term dimming due to a disk of debris from an exomoon accumulating around it, blocking its light. The exomoon's outer layers are being torn apart by stellar radiation, creating dust clouds that periodically pass between the star and Earth.
Research from Washington State University reveals that hiring star employees alongside founders can stall product innovation efforts due to conflicting influences. The study advises start-ups to establish clear chain of command, hire experienced start-up employees, and adapt to change as the organization evolves.
A new study provides the most accurate estimate of the frequency that planets similar to Earth occur around sun-like stars, which will be important for designing future astronomical missions. The researchers' novel approach allows them to account for several effects not included in previous studies.
Scientists have studied the Vela Pulsar, a neutron star 1,000 light years away, to understand its behavior during a glitch. The team found that the star's spin increased before slowing down, providing a glimpse into its interior structure, which consists of three different components.
A newly discovered ancient star contains a record-low amount of iron, hinting at the nature of the first stars in the Universe. The ultra-metal-poor red giant star has iron levels 1.5 million times lower than that of the Sun.
Researchers confirm a 'hot Earth' exoplanet, GJ 357 b, and discover two additional worlds orbiting the same star, including one potentially habitable planet, GJ 357 d. The newly discovered planets are located in the habitable zone of their star, which receives about the same amount of stellar energy as Mars does from the Sun.
The Transiting Exoplanet Survey Satellite (TESS) has discovered three new planets orbiting a nearby star, including one slightly larger than Earth. The planets' sizes and masses are unique, with two potentially similar to Neptune in our solar system, offering insights into planetary formation and evolution.
Astronomers observed a massive protostar's gaseous disk for the first time, finding it shares common features with lighter baby stars. The discovery suggests that star formation is the same process, regardless of final mass.
A supermassive black hole at the centre of jellyfish galaxy JO201 is stripping away gas and throwing it out into space, accelerating the suppression of star formation. This process, known as ram-pressure stripping, has caused a brief increase in star formation due to the compression of clouds of gas.
Researchers from the University of Leeds have developed 3D holograms to share their work on massive star cluster formation with the general public. The holograms allow people to watch millions of years of stellar evolution in 3D, making it easier for non-experts to understand complex topics.