Stars Winds Emission Mass Astrospheres Loss
- TOPICS: Astrophysicists Quantify the Mass Loss of Stars via Their Stellar Winds An international research team led by a researcher from the University of Vienna has for the first time directly detected stellar winds from three Sun-like stars by recording the X-ray emission from their astrospheres, and placed constraints on the mass loss rate of the stars via their stellar winds. The study was published in Nature Astronomy . Astrospheres, stellar analogs of the heliosphere that surrounds our ... [Read More]

Hole Black Hole Star Mass Scientists Bh3
- Gaia BH3, which is in the constellation of The Eagle, is 33 times bigger than the sun in terms of mass and was spotted because of a star 'wobbling' in its orbit. It was spotted in space by scientists from the European Southern Observatory. Astronomers have discovered the Milky Way's "most massive" stellar black hole yet. The newly discovered black hole is 33 times bigger than the sun and 2,000 light years away from us. A stellar black hole is formed when a star collapses - and so far, the ones ... [Read More]


Ray Milky Way Rays Cosmic Rays Energy Gamma
- A Super Cosmic Ray Accelerator – Chinese Astronomers Discover Giant Ultra-High-Energy Gamma-Ray Bubble TOPICS: The Large High Altitude Air Shower Observatory (LHAASO) has discovered a giant ultra-high-energy gamma-ray bubble structure in the Cygnus star-forming region, which is the first time that the origin of cosmic rays with energy higher than 10 Peta-Electronvolt (PeV, 1PeV=10 15 eV) has been discovered. This achievement was published in the form of a cover article in Science Bulletin ... [Read More]

Sputnik Planitia Pluto's Pluto Heart Impact University
- The mystery of how Pluto got a giant heart-shaped feature on its surface has finally been solved by an international team of astrophysicists. The team is the first to successfully reproduce the unusual shape with numerical simulations, attributing it to a giant and slow oblique-angle impact. The mystery of how Pluto got a giant heart-shaped feature on its surface has finally been solved by an international team of astrophysicists led by the University of Bern and members of the National Center ... [Read More]

Milky Way Streams Stellar Streams Matter Dark Matter Rubin
- Glittering threads of stars around the Milky Way may hold answers to one of our biggest questions about the universe: what is dark matter? With images taken through six different color filters mounted to the largest camera ever built for astronomy and astrophysics, Vera C. Rubin Observatory's upcoming Legacy Survey of Space and Time will reveal never-before-seen stellar streams around the Milky Way—and the telltale effects of their interactions with dark matter. As mesmerizing as rivers ... [Read More]


Galaxy Sami University Galaxies New South Wales Age
- TOPICS: An international team led by Australian research center ASTRO 3D reports that age is the driving force in changing how stars move within galaxies. Galaxies start life with their stars rotating in an orderly pattern but in some the motion of stars in more random. Until now, scientists have been uncertain about what causes this – possibly the surrounding environment or the mass of the galaxy itself. Key Findings on Galaxy Age A new study, published in recently in MNRAS (Monthly ... [Read More]

Winchcombe Meteorite Analysis Winchcombe Meteorite Rocks Space
- Intensive new nano-analysis of the Winchcombe meteorite has revealed how it was affected by water and repeatedly smashed apart and reassembled on the journey it took through space before landing in an English sheep field in 2021. Researchers from dozens of institutions in the UK, Europe, Australia, and the U.S. collaborated on the research. Together, they subjected mineral grains in fragments of the Winchcombe meteorite to a diverse range of cutting-edge analytical techniques. Their work, which ... [Read More]


Earth Apophis Asteroid Orbit Mission Kitt Peak National
- Asteroid (very) close encounter due in 2029 In 2029 the asteroid once considered the most probable to strike the Earth will fly uncomfortably close to the planet's surface. Spanning 335-375m, asteroid 99942 – dubbed 'Apophis' after the Egyptian god of chaos – was discovered in 2004 by astronomers from the Kitt Peak National Observatory in Tucson, Arizona. Initially, it was assessed as being a 2.7% chance of impacting Earth in 2029, 2036 or 2068. In the years since, though, ... [Read More]

Matter James Webb Space Telescope Jwst Er1g Er1g Mass Ring
- TOPICS: The James Webb Space Telescope discovered an ancient galaxy, JWST-ER1g, which exhibits a phenomenon called strong gravitational lensing, forming an Einstein ring. This galaxy, rich in dark matter, provides new insights into dark matter's properties and density. Last September, the James Webb Space Telescope, or JWST , discovered JWST-ER1g , a massive ancient galaxy that formed when the universe was just a quarter of its current age. Surprisingly, an Einstein ring is associated with this ... [Read More]

Planet Astronomers Sky System Planet Nine Percent
- Does Planet Nine exist? This mystery has puzzled scientists for decades, but the answer—and the suspected world—remains elusive. Astronomers leading the search for the potential planet orbiting our sun far beyond Neptune recently revealed that they've whittled away at where it might be in the sky, eliminating 78 percent of its possible hiding places. While that lengthens the odds that the planet exists, there's a still a lot of sky left to search , including spots that are much ... [Read More]

Spacecraft Scientists Mission Gravity Physics Nasa Jpl
- It's an exciting time for the fields of astronomy, astrophysics, and cosmology. Thanks to cutting-edge observatories, instruments, and new techniques, scientists are getting closer to experimentally verifying theories that remain largely untested. These theories address some of the most pressing questions scientists have about the Universe and the physical laws governing it – like the nature of gravity, Dark Matter , and Dark Energy . For decades, scientists have postulated that either ... [Read More]

Uranus Methane Planet Rings Planet's Icy
- For years, scientists believed Uranus was primarily a frozen world, an "ice giant" composed of helium and hydrogen with a dash of methane, not too gassy. However, recent research has turned this assumption on its head. Recent findings reveal that Uranus is much more gassy than we ever thought, with a significant portion of its core made up not of ice, but of a surprising, mushy form of methane gas. Uranus is made of what? Forget those textbook diagrams of Uranus as a bland, icy giant. We need a ... [Read More]


Universe Hubble Observations Jwst Data Results
- Cosmology seems to be heading for a showdown on one of its most basic questions: how fast is the Universe expanding? For more than a decade, two types of measurement have been in disagreement. Observations of the current Universe typically find the rate of expansion — called the Hubble constant — to be about 9% faster than predictions based on early-Universe data. Researchers hoped that the James Webb Space Telescope (JWST), which launched in late 2021 , would help to settle the ... [Read More]


Stars Star Formation Baby Gas Disk
- Researchers at Kyushu University have elucidated the formative processes of baby stars , offering a fresh perspective on the early stages of star formation . Using the ALMA radio telescope in Chile, the team recently observed intriguing phenomena around these nascent stars. They playfully term these phenomena "sneezes," which involve the protostellar disks surrounding baby stars releasing dust, gas, and electromagnetic energy. The researchers detailed their groundbreaking findings in The ... [Read More]


Elements Grb Gamma Heavy Elements Supernova Explosions
- In October 2022, surveys monitoring the skies for explosions in space started going off like a frog in a sock . The reason? Something 2.4 billion light-years away spat out the biggest burst of gamma-radiation ever recorded. The event, GRB 221009A, clocked in at a record 18 teraelectronvolts and was so powerful it shook Earth's outer atmosphere . The event, nicknamed the BOAT (for Brightest of All Time), we later determined to be the birth of a black hole from the violent death of a massive ... [Read More]

Dart Impact Space Mars Earth Mission
- In a daring deep space experiment, NASA's Double Asteroid Redirection Test ( DART ) mission aimed to investigate the potential for deflecting an asteroid's path by deliberately colliding a spacecraft with it. Now, Mars may suffer unintended consequences of this otherwise successful DART mission. NASA's mission, which took place in September 2022, targeted an asteroid named Dimorphos, with the intention of altering its orbit around its larger companion, Didymos. Mars in the crosshairs of DART ... [Read More]