Researchers at the University of Arizona conclude that Fomalhaut b, a suspected exoplanet, was likely an expanding cloud of dust from a cosmic collision. The team's analysis of Hubble data reveals characteristics that suggest the planet may never have existed.
Astronomers analyze archival Hubble data to reveal possible explanation for Fomalhaut b's disappearance: a massive dust cloud produced in a collision between two large bodies orbiting the nearby star Fomalhaut. The team suggests this event may have occurred only every 200,000 years.
Astronomers have discovered a black hole weighing 50,000 times the mass of our Sun, offering the strongest evidence yet for intermediate-mass black holes in the universe. Hubble's observations confirmed that the object was tearing apart a star that passed too close, providing key evidence for its existence.
A UNIGE researcher has solved a scientific controversy about the speed of the universe's expansion by proposing that it may not be homogeneous on a large scale. This approach eliminates a divergence between two independent calculation methods, which previously yielded conflicting values for the Hubble constant.
The Sombrero galaxy's halo is home to an unexpected abundance of metal-rich stars, defying conventional theory. Researchers attribute this finding to major mergers in the galaxy's past, which are puzzling given the galaxy's smooth disk structure.
Researchers analyzed 16 application cycles for Hubble Space Telescope time allocations and found that stripping out personal info can nearly eliminate gender bias. Female lead scientists performed slightly better than men when proposals were completely anonymized, indicating a more equitable review process.
The Breakthrough Listen Initiative has released nearly 2 petabytes of data from the most comprehensive survey yet of radio emissions from the Milky Way Galaxy and its central black hole. A new analysis of nearby stars that could see Earth transiting the sun was conducted, but no technosignatures were found.
The NSF's Daniel K. Inouye Solar Telescope has produced its first images, showcasing a pattern of turbulent plasma that covers the entire sun. This breakthrough will enable scientists to better understand space weather and its impacts on Earth.
The gigantic spiral galaxy UGC 2885 is 2.5 times wider than the Milky Way and contains 10 times as many stars, with modest ongoing star birth at half the rate of our galaxy.
The telescope will image large areas of the sky 1,000 times faster than Hubble, surveying as much of the sky in near-infrared light -- in just as much detail -- as Hubble has over its entire three decades. WFIRST will provide a broad and detailed view of the sky to answer fundamental questions about the universe.
The first identified interstellar comet, 2I -- Borisov, is being tracked by NASA's Hubble Space Telescope as it passes close to the Sun. The comet's nucleus is estimated to be smaller than half a kilometer in diameter and has a chemical composition similar to comets found within our solar system.
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.
The study reveals the location of the most energetic outburst ever seen, sitting in a dense environment within a bright galaxy 5 billion light years away. The high-energy radiation was produced by a collapsing star at nearly the speed of light, creating a shock that triggered the gamma-ray burst.
The Hubble Space Telescope has studied the gamma-ray burst GRB 190114C, emitting record-breaking energy of 1 TeV. Scientists observed this extremely high-energy emission from a collapsing star at nearly 99.999% of the speed of light, providing new insights into gamma-ray bursts and their environments.
Physicists use two types of measurements to calculate the universe's expansion rate, but their results don't coincide. The Hubble constant value differs by 7% between late and early Universe measurements.
A team of Clemson University astrophysicists has devised a new measurement of the Hubble Constant, which describes the rate of expansion of the universe. Their analysis of data from orbiting and ground-based telescopes yields a measurement of approximately 67.5 kilometers per second per megaparsec.
The Hubble Space Telescope reveals a remote galaxy split into multiple images by gravitational lensing, allowing astronomers to study its structure and environment. The Sunburst Arc, 11 billion light-years away, resembles galaxies from an earlier time in the universe's history.
A new measurement of the Hubble constant has been made using light from extremely distant galaxies, estimating a value of 76.8 kilometers per second per megaparsec. The result is comparable to previous estimates but differs significantly from other methods, sparking debate about potential new physics beyond our current understanding.
The sunshield has passed a test critical to preparing the observatory for launch, with technicians deploying and tensioning each of its five layers. The deployment simulates the conditions it will face in space, with temperatures ranging from -394°F to 230°F.
Astronomers have observed the first confirmed interstellar comet, 2I/Borisov, using NASA's Hubble Space Telescope. The comet has a central concentration of dust around its nucleus and is traveling at an extraordinary speed of 110,000 miles per hour.
The HERON collaboration completes the largest survey of nearby galaxy haloes, finding that diameter correlates with galaxy brightness; vast haloes found in bright galaxies, also seen in smaller discs. The team's low-cost system reveals faint stars tracing dark matter structures, offering new insights into galaxy evolution.
Astronomers used Hubble data to find a surplus of incoming gas in the Milky Way, with unknown sources contributing to the excess. The galaxy's balance regulates star and planet formation.
The University of Massachusetts Lowell's PICTURE-C telescope was launched via a football field-sized helium balloon to study objects hidden by stars' glare. The instrument boasts an optical control system and can block out direct light from stars, allowing for the detailed study of nearby planets.
Astronomers have discovered the oldest known galaxy protocluster, z66OD, with 12 galaxies existing 13.0 billion years ago. One of these galaxies is Himiko, a giant object found previously by the Subaru Telescope, which was unexpectedly located on the edge of the protocluster.
Scientists have developed a new technique for measuring the expansion of the universe using gravitational lensing, which yields a somewhat higher Hubble Constant value compared to standard measurements. The method provides a valuable alternative approach to addressing the long-standing discrepancy in the Hubble Constant's value
The latest Hubble image of Saturn reveals a planet with a dynamic atmosphere, featuring turbulent storms and subtle changes in its banded structure. The iconic hexagon at Saturn's north pole remains unchanged, while the mysterious six-sided pattern continues to intrigue scientists.
Researchers detected water vapor signatures on K2-18b, a planet in the habitable zone around a small red dwarf star. The findings suggest liquid water could pool on its surface if it's terrestrial in nature.
Research reveals that storm clouds on Jupiter affect the planet's white zones and colorful belts, changing their flow and even altering their colors. The study tracked the effects of these storms using coordinated observations from six telescopes and NASA's Hubble Space Telescope.
Astronomers can now automatically follow up on variable astronomical objects with a range of 0.4-meter to 8-meter telescopes, observing in UV light to infrared. The network uses automated software and generates dynamic observing schedules every 15 minutes.
Astronomers have developed a model showing the James Webb Space Telescope can detect the atmospheres of all seven TRAPPIST-1 planets in just 10 transits or fewer, even with cloud cover. The telescope's Near-Infrared Spectrograph will help identify gas spectral fingerprints to determine atmosphere composition.
The University of Hawaii at Manoa Institute for Astronomy has received a $1.1 million grant to install an adaptive secondary mirror on the UH 2.2-meter telescope on Maunakea, enabling corrected images free from atmospheric blurring effects.
Astronomers have found a treasure trove of previously unknown ancient massive galaxies, defying current models of the universe. These galaxies are connected to supermassive black holes and dark matter, providing new insights into cosmic evolution.
NASA successfully deployed its secondary mirror in a crucial testing step, paving the way for the James Webb Space Telescope's groundbreaking science. The successful test demonstrates the telescope's electronic connection and prepares it for integration into its final form.
University of Arizona researchers have developed a new lens technology that can collect more light and search for signs of life on 1,000 exoplanets. The Nautilus telescope array will be powerful enough to characterize planets from 1,000 light years away, providing valuable insights into the complexity of exo-earths.
Researchers examine SKA-MPG telescope prototype for its ability to investigate cosmic background radiation with ultra precision. The study provides new insights into the origin of the Universe and explores potential applications in gravitational wave detection and dark energy research.
The James Webb Space Telescope is the result of a nationwide collaboration, with components manufactured across 29 US states. The telescope will explore cosmic history, solve mysteries in our solar system, and probe the origins of the universe.
A new method using red giant stars has measured the universe's expansion rate at 69.8 kilometers per second per megaparsec, settling between previous values of 74.0 km/s/Mpc and 67.4 km/s/Mpc. The result may indicate that the standard model of the universe is not yet complete.
Astronomers have made a new measurement of the Hubble constant using red giant stars, indicating an expansion rate of around 70 km/sec/Mpc. This measurement falls in the center of a hotly debated question and may lead to a new interpretation of the universe's fundamental properties.
Researchers observed a supermassive black hole in galaxy NGC 3147 with an unusual thin disk of gas swirling around it, contrary to predictions. The team used Hubble Space Telescope's STIS instrument to study the disk, revealing unique features that can only be explained by Einstein's theories of relativity.
Researchers pin down Hubble constant value between 65.3 and 75.6 km/s/Mpc using gravitational wave signals and radio images. This method relies on a single merger event, which is remarkable given the cosmological models' limitations.
Astronomers have developed a new method to measure the expansion of the Universe by analyzing neutron star mergers and gravitational waves. This technique uses the orientation of the gravitational wave signal to determine the distance, providing a new 'cosmic ruler' for measuring the Hubble Constant.
Astronomers have identified the atmospheric composition of a mid-size planet between Earth and Neptune for the first time using NASA's Hubble and Spitzer space telescopes. The planet, Gliese 3470 b, has a large rocky core surrounded by a deep crushing atmosphere mostly composed of hydrogen and helium.
Researchers using the radio telescope ALMA have detected a galaxy in the early Universe 13 billion years ago, which is actually two galaxies merging together. The team observed signals of oxygen, carbon, and dust from the galaxy B14-65666, providing the earliest evidence of merging galaxies yet discovered.
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.
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 reveals no significant correlation between galaxy bulge size and spiral arm winding, contradicting a key assumption in Hubble's model. The findings suggest that most spirals may not be static density waves after all.
The Hubble Space Telescope's Wide Field Camera 3 has captured a breathtaking image of NGC 7773, a mature barred spiral galaxy. The galaxy features a luminous bar-shaped structure, thought to be a sign of galactic maturity and stellar nursery.
NGC 4621, also known as Messier 59, is an elliptical galaxy exhibiting signs of star formation contrary to typical elliptical galaxies. Located approximately 50 million light-years away, the galaxy was observed using Hubble Space Telescope's Advanced Camera for Surveys.
The Hubble Space Telescope has captured an image of the galaxy Messier 90, which is moving towards the Milky Way at a speed of approximately 60 million light-years. This rare phenomenon is known as blueshift, where the galaxy's light is compressed and shifted towards the blue end of the spectrum.
A nearby galaxy, NGC 4485, is experiencing a surge in star birth due to its gravitational interaction with NGC 4490. The collision triggered the creation of young blue stars and nebulae on the right side of the galaxy.
The Hubble Space Telescope has captured a breathtaking image of NGC 2903, a nearby spiral galaxy. The study aims to understand the relationship between a galaxy's central black hole and its rugby-ball-shaped bulge.
Astronomers created a comprehensive 'history book' of galaxies using 16 years' worth of Hubble observations, covering 265,000 galaxies that stretch back 13.3 billion years. The new image mosaic provides a wide portrait of the distant universe, chronicling galaxy assembly over time.
Messier 75 is a globular cluster located approximately 67,000 light-years away from Earth in the Sagittarius constellation. The cluster features an enormous core with about 400,000 stars, making it one of the most densely populated clusters ever discovered.
Astronomers using NASA's Hubble Space Telescope have strengthened the case for new theories to explain the forces shaping the cosmos. The latest Hubble measurements suggest a faster expansion rate in the modern universe, contradicting expectations based on early universe observations.
A new study using NASA's Hubble Space Telescope confirms the universe is expanding about 9% faster than expected. The measurements, published April 25 in the Astrophysical Journal Letters, strengthen the cosmic distance ladder and calculate the Hubble constant with increased precision.
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.
SwRI leads largest-ever Hubble survey of the Kuiper Belt, focusing on binary populations and testing planetesimal formation theories. The Solar System Origins Legacy Survey aims to understand solar system architecture and planetary evolution.
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 observed the disintegration of asteroid 6478 Gault using NASA's Hubble Space Telescope and other observatories. The asteroid's rapid spinning has caused it to shed material, resulting in two narrow tails of dusty debris streaming from its surface.
Asteroid Gault, one of only a handful to be caught disintegrating, has been observed in clear images from the Hubble Space Telescope. The object's two narrow tails indicate it is slowly undergoing self-destruction, releasing material into space.