Articles tagged with Stars
Astronomers detected a rotating spiral galaxy in the early universe, over 3 billion years after the Big Bang, using the Hubble Space Telescope. The galaxy, named BX442, is unlike other ancient galaxies with its grand design structure and massive size.
Astronomers discover that small dwarf galaxies in the Milky Way contain only a few stars and share the same birth date, indicating they were shut down by reionization. The relic galaxies provide evidence for a transitional phase in the early universe.
Astronomers have discovered that the Milky Way's stars are moving in unexpected ways, suggesting a recent encounter with a small galaxy or dark matter structure. The team found a north-south asymmetry in the distribution of stars, which may be caused by a vertical wave formed by the object's passage.
Researchers use CRIRES instrument on VLT to study Tau Bootis b's atmosphere, measuring mass and carbon monoxide levels. The new technique allows for the detection of non-transiting exoplanets' atmospheres, enabling scientists to learn more about their atmospheric conditions.
Researchers use Lonestar supercomputer to create nearly 100,000 models of one galaxy, representing the range of possible ways stars can move. They find that dark matter is more spread out at the edge of the galaxy than previously thought, with a fluffier distribution but the same total amount.
The James Webb Space Telescope has received its first mid-infrared instrument, the Mid-Infrared Instrument (MIRI), allowing scientists to study cold and distant objects in greater detail. MIRI's capabilities will help distinguish the oldest galaxies from more evolved objects, enabling researchers to understand the birthplaces of stars.
Xander Tielens receives the Spinoza prize for his groundbreaking work on PAHs in space, which has shed light on the importance of these molecules in star and planet formation. His research has also explored the role of PAHs in the early stages of life.
A University of Delaware-led research team has developed more accurate calculations for the interactions between molecules of hydrogen and carbon monoxide, essential for spectroscopy in astrophysics. These advancements enable researchers to analyze molecular clouds where stars are born with greater precision.
Researchers have discovered an additional third of atomic hydrogen gas in galaxies, which could impact star formation rates. The findings suggest that galaxies are forming stars at 20 times the rate they did billions of years ago.
A team of scientists has discovered an unseen planet orbiting a Sun-like star,KOI-872, by analyzing transit variations caused by the hidden object's gravity. The planet is estimated to be about the mass of Saturn and orbits its host star every 57 days.
Research suggests hundreds of billions of free-floating, Earth-sized life-bearing planets exist between stars in the Milky Way. These 'missing mass' planets could mix cosmic primordial life on a galaxy-wide scale.
Astronomers discovered that hot Jupiter-type planets are likely to have no companions in their systems, supporting the theory of a close encounter with another body causing orbital elongation. This study used Kepler mission data and found compelling evidence for companion planets around warm Jupiters and hot Neptunes.
Researchers at Queen's University have developed TeleHuman, a life-size 3D videoconferencing pod that allows people to interact with each other in a Star Trek-like holodeck environment. The technology uses existing hardware and can be used for interactive 3D anatomy exploration through BodiPod.
Astronomers have discovered a supermassive black hole eating a star's core, revealing that these massive objects snack infrequently. The discovery showcases the power of the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) in detecting transient phenomena.
MIRI, the Mid-Infrared Instrument on the James Webb Space Telescope, offers unparalleled capabilities for studying distant galaxies, star formation, and planetary systems. Its spectrometer and camera enable scientists to analyze an object's physical properties and image its shape and structure.
Astronomers captured a unique image of over 10,000 stars in the Milky Way's centre, revealing large structures like gas and dust clouds. The image, created by combining infra-red light data from two telescopes, offers new insights into the galaxy's structure.
New research reveals that runaway planets exist and can reach speeds of up to 30 million miles per hour, outpacing most objects in the Galaxy. These hypervelocity planets are produced by double-star systems interacting with supermassive black holes.
Researchers found it's unlikely materials can spread between Gliese 581's super-Earth and other planets due to high orbital velocities, making biologic exchange unique to our solar system.
A team of researchers from MIT has detected tellurium, a rare Earth element, for the first time in three ancient stars. The finding supports the theory that tellurium and other heavy elements likely originated from a rare type of supernova during nuclear fusion.
McMaster University's Christine Wilson presents findings on galaxy Arp 220's dazzling rate of star formation, which is 200 times faster than our own Milky Way. The star forming core of Arp 220 is only about 3,000 light years across.
The Alfred P. Sloan Foundation has selected 126 outstanding researchers to receive fellowships for their work in the ocean sciences, expanding the award's reach to this field. The fellowships support early-career scientists and scholars with $50,000 grants.
Researchers have used a 'light echo' technique to demonstrate that Eta Carinae's Great Eruption was significantly cooler than expected, differing from previously thought supernova impostors. The team's findings suggest the eruption may have been triggered by alternative models, warranting further investigation.
Astronomers use gravitational lensing to study a vigorously forming galaxy, revealing regions of intense star formation. The team aims to analyze these star-forming regions through spectroscopy to understand their formation mechanisms.
Most of the Milky Way's 100 billion stars have planets similar to Mercury, Venus, Earth and Mars. The research found an average of 1.6 planets in the habitable zone around each star.
A team of astronomers using gravitational microlensing detected three exoplanets, including a super-Earth and planets comparable to Neptune and Jupiter. Combining this data with previous findings, the researchers conclude that planets are more common than stars in the Milky Way.
Astronomers using ALMA have found compelling evidence for how star-forming galaxies evolve into 'red and dead' elliptical galaxies, catching a large group of galaxies right in the middle of this change. The study reveals that galaxies are being starved of star-forming gas by their central black holes' jets.
Researchers used the VLBA and RXTE satellite to study a 2009 outburst from a black hole system. The collaboration gathered detailed images of
Researchers found that people in lower socio-economic classes are more physiologically attuned to suffering and quicker to express compassion than their more affluent counterparts. This challenges previous studies that characterized lower-class individuals as prone to anxiety and hostility. The study suggests a culture of compassion am...
Astronomers detect first low-mass star in globular cluster M22 using gravitational microlensing, suggesting alternative explanation for cluster mass. The star has less than a fifth of the sun's mass and is 3.2 kiloparsecs from it.
Researchers mapped over 100 molecular clouds in the LMC and found many low-mass clouds, contradicting conventional wisdom. The team hopes to learn more about the metamorphosis of gas clouds into stars.
For the first time, astronomers have produced a complete description of a black hole using precise measurements. The new information reveals that the black hole is nearly 15 times more massive than our Sun and spinning over 800 times per second.
Astronomers have uncovered an extraordinary population of young dwarf galaxies brimming with star formation, forcing a re-evaluation of their understanding of galaxy evolution. These galaxies are estimated to be 9 billion years old and produce stars at rates 100 times faster than the Milky Way.
Researchers suggest looking for artificial illumination on distant planets as they orbit their stars, which could provide a measurable signal. This technique relies on the assumption that intelligent life uses Earth-like technologies and could potentially spot alien cities using future generations of telescopes.
A team of researchers measured the bar length of over 5,000 galaxies using amateur astronomers' data from the Galaxy Zoo project. The study reveals that redder galaxies have longer bars and are more likely to display spiral arms.
Scientists have identified areas with extreme potential for forming complex organic molecules, a key ingredient for life. These 'sweet spots' are found around newly formed stars and have conditions that support high methanol production.
Astronomers have identified 13 new diffuse interstellar bands with the longest wavelengths to date, which could help explain the presence of large organic molecules in space. The discovery supports recent ideas that these molecules, or 'carriers,' are hidden in interstellar dust clouds.
A new survey of galaxies reveals active galactic nuclei in young, blue star-making factories, overturning the idea that these objects hinder star formation. The study finds X-ray signals from AGN in a wide range of galaxy types, including massive and smaller galaxies, old elliptical red galaxies and younger blue spirals.
Researchers have found visual evidence for two extrasolar planets in archival Hubble data from 1998, using a novel approach to detect faint planet signals. The discovery allows for the tracking of planetary orbits and provides insight into system stability, mass, and eccentricity.
Lee's surface circulation absorbed by a large extratropical low pressure area near the Tennessee/Virginia border. Heavy rainfall expected from central Appalachians into New England, with totals up to 10 inches until week's end.
A new study by Nicolas Lehner and Christopher Howk reveals that massive clouds of ionized gas in the Milky Way's halo are a reservoir of fuel for galactic star formation. The researchers measured the distances to these clouds using the Cosmic Origins Spectrograph on the Hubble Space Telescope, confirming models that predicted gas falli...
Researchers at Ohio State University have discovered a potential new radiation treatment that uses heavy metals and low-energy electrons to target cancer tumors. The method, called Resonant Nano-Plasma Theranostics (RNPT), has the potential to reduce radiation exposure to healthy tissue.
The galaxy Centaurus A is home to a firestorm of new star formation triggered by shockwaves from a past collision and merger with another galaxy. Hubble's image reveals the birth of vibrant blue star clusters and compresses hydrogen gas clouds.
The Drug and Therapeutics Bulletin warns that current UK sun cream advice is too low on protection and impractical to follow. The organization recommends rethinking the current SPF of 15 and suggests a more balanced approach with products labeled as 'factor 30' for broad-spectrum ultraviolet screening effect.
A team of researchers has developed a method to track the movement of geostationary objects in space using the position of stars. This technique can be used with small telescopes and in places that are not very dark, allowing for precise location and orbit determination of GEO satellites.
The discovery of blue stragglers in the Milky Way's hub suggests that the galaxy stopped making stars billions of years ago. The findings provide new constraints for models of the star-formation history of the bulge.
Astronomers have created an atlas of galactic 'train wrecks' to understand the collision process and form, growth, and evolution of galaxies. The study combines data from Spitzer Space Telescope and Galaxy Evolution Explorer to analyze areas where stars are forming rapidly.
The Expanded VLA is providing new insights into the formation of sun-like stars, with observations revealing previously unseen detail of molecular gas near a very young star. The telescope's improved quality is also helping researchers study large ejections of matter from massive young stars and their role in galaxy evolution.
Kepler's first four months of data reveal evidence for over 1,200 planetary candidates, with 408 residing in systems containing two or more planets. These multi-planet systems are characterized by flat orbits, tilted less than 1 degree, and lack Jupiter-sized gas giants.
The Hubble Space Telescope has observed the historic variable star V1, which helped confirm the size of the universe and its expansion. The observations, conducted in collaboration with amateur astronomers, provide new insights into the properties of Cepheid variables and their role in measuring distances to galaxies.
Bennett's team found 10 free-floating planets roughly the mass of Jupiter, suggesting planetary systems often become unstable, ejecting planets from their orbits. The discovery confirms that free-floating planets exist and are quite common, estimated to be twice as many as stars.
NC State physicist Dean Lee and colleagues create simulations using effective field theory to calculate low-lying states of carbon-12, confirming the Hoyle state's existence. The research provides a better understanding of 'fine-tuning' in stellar processes that produce essential elements for life.
Detecting raging storms of molecular gas streaming away from galaxies for the first time, Herschel reveals powerful outflows that could halve a galaxy's star-forming capacity within one million years. This discovery offers insights into galactic evolution and negative feedback mechanisms.
Physicists at Rice University have detected the heaviest antimatter particle ever observed, antihelium-4, using a time-of-flight detector designed at the institution. The discovery provides new insights into the conditions of the early universe and the existence of antimatter galaxies.
Researchers detect 18 examples of antihelium-4, a massive antimatter partner of helium, in data from over 1 billion collisions at RHIC. The discovery could provide crucial insights into the early universe's matter-antimatter balance and the search for bulk antimatter elsewhere.
Two unique types of mirrors, Primary and Secondary EDUs, have arrived at NASA's Goddard Space Flight Center. The mirrors will work together to observe distant galaxies and unexplored planets. The Primary mirror is composed of 18 hexagonal segments, while the Secondary mirror directs light from the Primary mirror to Webb's instruments.
Italian researchers created space-like conditions in a vessel to confirm the behavior of astrophysical jets, which travel at high speeds and stretch across vast distances. The study found that these jets behave according to Newtonian Dynamics, confirming successful 3D simulations.
A newly merged black hole can be detected by observing the tidal disruption of surrounding stars, which will provide accurate distances and precise sky coordinates. This could lead to a better understanding of dark energy and Einstein's general theory of relativity.
A new model developed by Sheldon Jacobson predicts the most likely Final Four combinations based on seedings, rather than team performance. The model suggests that choosing a combination of two top-seeded teams, a No. 2 seed, and a No. 3 seed is the best bet for winning the office pool.
Researchers have developed a new strategy to improve microscopy by following the astronomers' guide star technique, allowing for sharper images of biological samples. This method uses adaptive optics and two-photon fluorescence microscopy to correct for light waves hitting cells in different directions.
Researchers have discovered a thick stellar disc in the Andromeda galaxy, composed of older stars with distinct chemical and orbital properties. This finding sheds light on the formation and evolution of spiral galaxies like our own Milky Way.