Researchers found enormous cosmic bubbles, dubbed 'ghost cavities,' containing faint radio emissions that may hold magnetic fields. These bubbles could be crucial in creating new stars and shaping galaxy cluster structure.
A team of astronomers led by UMass' Daniel H. McIntosh found evidence of galaxies transforming in response to their environment. They observed three massive galaxy clusters and discovered a link between a galaxy's surroundings and its evolution, with blue galaxies forming stars while reddish galaxies have few stars.
A team of scientists discovered a small, faint galaxy at 13.4 billion light-years using the Hubble Space Telescope and Keck Telescopes. The galaxy, with a mass of just a few million times that of our Sun, is thought to be one of the earliest building blocks of galaxies.
NGC 3310 is forming clusters of new stars at a prodigious rate, with hundreds of individual young, luminous stars visible throughout the galaxy. The wide range of cluster ages suggests that the starbursting can continue for an extended interval, once triggered.
A team of Rutgers astronomers has detected a galaxy without a supermassive black hole at its center, marking the first such discovery. The team used Hubble's high-resolution instruments to observe the galaxy M33 and concluded that only a black hole smaller than 3,000 solar masses could be present.
Researchers identified complete set of pollen coat proteins, revealing genetic clues to plant mating and self-recognition. The study found rapid divergence of mating genes across species boundaries, shedding light on evolutionary processes.
Researchers have found evidence of an extreme warp in the stellar disk of the Andromeda Galaxy, which may be the most extreme case of a warped spiral galaxy. The findings suggest that interactions between Andromeda and its satellite galaxies could be responsible for the warp.
Astronomers have discovered over 154 rapidly moving stars towards the center of the Milky Way and its brightest neighboring galaxy. The findings are significant as these stars were previously difficult to detect due to their extreme density, allowing scientists to gain insights into the galaxy's most densely packed regions.
A team of astronomers, including an undergraduate researcher, detect the presence of massive stellar explosions in a distant galaxy using quasar light. The discovery reveals six super bubbles formed at nearly the same time, releasing energy equivalent to 10,000 suns over their lifetimes.
Astronomers have discovered intriguing patterns of star motion and composition that suggest a remnant of a smaller galaxy consumed by the Milky Way billions of years ago. The study, part of the 2dF Old Stellar Population Survey, aims to investigate the galactic merger that formed the Milky Way's thick disk.
The Hubble-X image reveals a nearly circular bright cloud at the core of a star-forming region in NGC 6822. The cloud contains thousands of newly formed stars and is many times brighter and larger than the Orion Nebula in our Milky Way galaxy.
The team designed a unique mathematical system for analyzing genetic data based on a computer algorithm that clusters information into relevant categories. The algorithm mimics unassisted learning, categorizing tissue samples into separate clusters according to their gene expression profiles.
Scientists have found a mid-mass black hole in the M82 galaxy, which packs the mass of at least 500 suns into a region about the size of the Moon. The discovery opens a new field of research and suggests that such black holes may exist in our own galaxy.
Chandra has revealed unprecedented images of a blast wave from an exploding star, a flare from a brown dwarf, and a small galaxy being cannibalized by a larger one. The observatory's high resolution has enabled scientists to pinpoint sources of the X-ray background glow, leading to a better understanding of our universe.
The W49 cluster is believed to contain approximately 100 type O stars, the hottest and most massive stars in our galaxy, all less than 1 million years old. This young star cluster is part of a larger birthing process that will eventually lead to globular clusters like those orbiting the Milky Way.
Astronomers use NASA's Chandra X-ray Observatory to study the growth of Perseus A, a supergiant galaxy at the center of a large galaxy cluster. The research reveals that Perseus A has accumulated hundreds of billions of stars by cannibalizing gas and smaller galaxies in the vicinity.
Astronomers have found evidence of a supermassive black hole similar to the one in our Milky Way in a nearby galaxy. The discovery was made using spectra from the Hubble Space Telescope and reveals details about the object's mass that could help scientists understand how these celestial phenomena are formed.
Tiny gold nanoclusters exhibit distinctly chiral properties, dramatically affecting polarized light absorption. The clusters' unique structure and conduction electron circulation produce a helical effect comparable to naturally-helical structures.
Scientists have imaged the pressure fronts in a colossal cosmic 'weather system' produced by the collision of two giant clusters of galaxies. The data reveals a bright but relatively cool central region embedded in a large cloud of hot gas. This is the first detailed look at the late stages of this merger process.
A team of scientists used Chandra to observe the Andromeda Galaxy and found a supermassive black hole with a surprisingly cool gas funneling into it. The temperature of this gas is only several million degrees, unlike other X-ray sources in the galaxy that reach millions of degrees.
A Yale researcher has discovered up to 70 new and very distant RR Lyrae stars in the Milky Way that can provide valuable clues about the galaxy's history and composition. The stars are thought to be among the oldest in the galaxy, with ages of over 12 billion years.
Astronomers have observed five young, massive star clusters in a distant galaxy, offering a glimpse into the earliest stages of stellar nursery development. The discoveries, estimated to be around 500,000 years old, provide valuable insights into how globular clusters form and evolve over billions of years.
Researchers from the University of Washington have discovered that Barnard's Galaxy, an irregular dwarf galaxy, is significantly different from the Milky Way. Using images taken by the Hubble Space Telescope, they found three star clusters within NGC 6822 to be of very different ages, with one cluster dating back 15 billion years.
Researchers have discovered a mechanism by which the galaxy is seeded with gas to form new stars, solving a long-standing question of galactic evolution. The discovery confirms that high-velocity clouds play a key role in the chemical evolution of the galaxy by showering it with metal-poor gas.
Researchers have found two nearby streams of stars that appear to be debris from a single dwarf galaxy torn apart by the Milky Way's gravity about 10 billion years ago. These relic streams are part of the Milky Way's outer structure and provide insights into its formation.
Researchers at Ohio State University have found signs of a compact, supermassive object at the center of galaxy NGC 5548, suggesting the presence of a black hole. The study used data from the International Ultraviolet Explorer satellite and ground-based telescopes to analyze changes in light from the galaxy's active galactic nucleus.
Astronomers used numerical cosmology to study the earliest structures that formed in the universe, finding tiny star clusters containing 1,000-10,000 solar masses. These early clusters were likely the 'spark plugs' that started the formation of galaxies.
New radio observations reveal that black holes in galaxies can be fed with gas, while the surrounding material remains intact. In NGC1097, a barred galaxy with a massive central black hole, researchers found that gas flows towards the black hole through a shock front, which is then redirected along the bar by magnetic fields.
Astrophysicist James Annis suggests that cataclysmic gamma-ray bursts could be sterilizing galaxies, preventing extraterrestrial life from reaching Earth. This theory may provide an explanation for the Fermi Paradox, with intelligent life having recently emerged in the Galaxy and being unable to explore yet.
Astronomers have discovered bluer galaxies in nearby clusters, indicating recent star formation and a possible ongoing process. The finding revises the Butcher-Oemler effect, suggesting that some clusters may still be forming new stars.
Astronomers discover a small galaxy orbiting the Milky Way, which is surprisingly sturdy due to its high dark matter content. The discovery challenges current understanding of galaxy formation and evolution.
Researchers used computer simulations and high-resolution observations to understand how stars form when galaxies collide. Clumping in gas on a large scale triggers bursts of star formation.
A team of astronomers led by Eric Neilsen discovered that a large galaxy is stripping star clusters from neighboring galaxies. The study used data from the Hubble Space Telescope to confirm that globular clusters were stripped away by M87, a giant elliptical galaxy.
Researchers have discovered a new state of matter in clusters of sodium atoms, exhibiting lower melting points than expected. The phenomenon challenges conventional physics and raises questions about the behavior of solid and liquid states in small particles.
A team of astrophysicists discovered fewer low-energy photons in the universe than previously thought, suggesting that high-energy gamma rays may not be interacting with as many low-energy photons as expected. This observation could alter current theories of the history of the universe and galaxy formation.
The new sonochemical synthesis technique creates highly magnetic metal powders with clusters of a few hundred atoms, exhibiting superparamagnetic behavior. These powders have the potential to be used in various applications including information storage, audio reproduction, and magnetic sealing.
Researchers have discovered a powerful energy source inside the nucleus of a Seyfert galaxy, challenging previous theories and providing new insights into the formation of galaxies. The findings suggest that both types of Seyfert galaxies may harbor quasars, with the power source located behind an obscuring 'fat torus' or doughnut girdle.
The discovery of EUV emissions in the Coma cluster suggests a large cloud of cooler matter, totaling up to 10 trillion of our Suns, which could help clear up a major problem with these galactic groupings. The findings also hint at the presence of normal baryonic matter instead of dark matter or exotic particles.
A team of astronomers observed extremely rapid bursts of high-energy gamma rays from a distant galaxy, challenging current theoretical models. The bursts were extremely rapid, occurring in under half an hour, while previous flares occurred over days or minutes.
Scientists successfully modeled the evolution of a massive X-ray galaxy cluster using CTC's SP, achieving unprecedented complexity and resolution. The simulation explores the collapse of high-density regions in a cube of 256 million light years on a side, incorporating gravity and hydrodynamics.