Tag

Ancient Galaxy

All articles tagged with #ancient galaxy

astronomy1 year ago•6 min saved

"James Webb Telescope Reveals Enormous 13-Billion-Year-Old Dead Galaxy, Challenging Cosmology"

The James Webb Space Telescope has revealed that a speck of light observed by the Hubble Space Telescope is actually one of the oldest galaxies ever discovered, known as Gz9p3, seen just 510 million years after the Big Bang. The galaxy's massive size and mature state challenge previous understanding of early galaxies, and its complex shape indicates an ongoing merger between two galaxies. The observations also suggest a rapid accumulation of stars and metals in the early universe, shedding light on the role of galaxy mergers in stellar population growth.

via Space.com|

#ancient-galaxy #astronomy #early-universe

science1 year ago•3 min saved

"Lab-Created Elephant Stem Cells: A Step Towards Mammoth Revival"

Scientists have reprogrammed cells from an Asian elephant to potentially bring back the woolly mammoth, aiming to restore the Arctic tundra. The James Webb Space Telescope discovered the oldest "dead" galaxy, while archaeologists found the world's oldest known loaf of bread and warned of a potential extinction crisis for Camembert cheese. Researchers also unearthed a toothless bird species and a nearly complete titanosaur skeleton, and used a celestial method to determine ancient human presence in Europe 1.4 million years ago.

via KSL.com|

#ancient-galaxy #archaeology #avian-evolution

astronomy1 year ago•3 min saved

"NASA Spots Oldest 'Dead' Galaxy, Prompting Revisions to Early Universe Understanding"

NASA's James Webb Space Telescope has discovered the oldest-known dead galaxy, which ceased star formation nearly 13 billion years ago, shedding light on the early stages of the universe. The find, detailed in a study published in Nature, offers insights into the regulation and cessation of star formation in galaxies, with implications for understanding the evolution of the cosmos. This discovery expands our understanding of the universe's expansion and the potential for dormant galaxies to reinitiate star-forming processes.

via Giant Freakin Robot|

#ancient-galaxy #astronomy #james-webb-space-telescope

astronomy2 years ago•2 min saved

Ancient Galactic Disk Reveals Seismic Ripples: Astronomers' Groundbreaking Find

Astronomers have detected seismic ripples in the ancient galactic disk of BRI 1335-0417, the oldest and furthest known spiral galaxy in the universe. Using the ALMA telescope, researchers observed the motion of gas within the galaxy and discovered a seismic wave forming, indicating the dynamic growth of the young galaxy. The study also revealed a bar-like structure in the disk, which can disrupt gas and transport it towards the galaxy's center. These findings provide insights into how gas fuels star formation and the formation of spiral structures in early galaxies.

via Phys.org|

#ancient-galaxy #astronomy #galactic-disk

astronomy2 years ago•2 min saved

"James Webb Space Telescope uncovers ancient ghost galaxy hidden in dust"

The James Webb Space Telescope has captured an image of galaxy AzTECC71, a highly dust-obscured resident of the early universe, providing insights into the evolution of the universe since the Big Bang. The image reveals that the early universe may have been much dustier than previously thought, suggesting the existence of a population of galaxies that have been hidden from observation. The JWST's powerful infrared capabilities allow it to penetrate dust-thick clouds and detect galaxies that were previously invisible to telescopes like Hubble. This research sheds light on the biased understanding of galaxy evolution due to the limited visibility of less dusty galaxies.

via Space.com|

#ancient-galaxy #astronomy #dust-obscured

astronomy2 years ago•2 min saved

"James Webb Space Telescope Uncovers Elusive Ghost Galaxy Hidden in Dust"

The James Webb Space Telescope has captured an image of a highly dust-obscured galaxy, AzTECC71, from the early universe, providing insights into the evolution of the cosmos. The image reveals the galaxy as a hazy speck of light, suggesting that the early universe may have been much dustier than previously thought. This discovery challenges our understanding of galaxy evolution, as many of these dust-shrouded galaxies were previously invisible to telescopes like Hubble. The James Webb Space Telescope's powerful infrared capabilities allow it to penetrate through dust-thick clouds, uncovering hidden galaxies and expanding our knowledge of the early universe.

via Yahoo! Voices|

#ancient-galaxy #astronomy #dust-obscured

astronomy2 years ago•2 min saved

"James Webb Space Telescope Uncovers Elusive Ghost Galaxy, Dubbed the 'Monster'"

via Yahoo News|

#ancient-galaxy #astronomy #dust-obscured

science-and-astronomy2 years ago•3 min saved

Ancient Magnetic Galaxy Sheds Light on Milky Way's History

Astronomers have detected a magnetic field spanning 16,000 light years in an ancient galaxy, known as 9io9, which existed over 11 billion years ago. This is the earliest detection of galactic magnetism in the universe. The discovery was made using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile. The weak magnetic field suggests that intense star formation in the early stages of the galaxy's life helped propagate the magnetic field across the galaxy. This finding provides new insights into the formation of galactic magnetic fields and their role in galactic evolution.

via Space.com|

#ancient-galaxy #atacama-large-millimetersubmillimeter-array-alma #galactic-evolution

astronomy2 years ago•3 min saved

Unprecedented Discoveries: James Webb Space Telescope Captures Cosmic Collisions and Explosions

An international team of astronomers has detected a long gamma-ray burst in an ancient galaxy, challenging previous understanding of their origins. The burst is believed to have been caused by the merging of two separate neutron stars, rather than the collapse of a massive star or the collision of neutron stars that had been orbiting each other. The researchers used multiple telescopes to study the burst and found evidence supporting their hypothesis, including the absence of heavy stars and the crowded nature of the galaxy's center. They hope future observations will provide further insights into the phenomenon.

via SciTechDaily|

#ancient-galaxy #astronomers #astronomy

science2 years ago•2 min saved

Unprecedented Discoveries: Exploring Explosions and Collisions in the Universe

Scientists have observed a new way for stars to die: by colliding with each other and causing a massive gamma-ray burst. This discovery was made by an international team of astrophysicists studying the area around a supermassive black hole in an ancient galaxy. The collision of two stars resulted in a minute-long flash of gamma rays, ruling out other common causes of gamma-ray bursts. While collisions between stars have been theorized, this is the first time it has been observed. The finding highlights the vast unknowns in the universe and the continued importance of both ground-based and space observatories in making discoveries.

via Giant Freakin Robot|

#ancient-galaxy #astrophysics #gamma-ray-burst

astronomy2 years ago•2 min saved

"Surprising Discoveries: Monster Stars and Supermassive Black Holes in Ancient Galaxies"

Astronomers using the James Webb space telescope have discovered a supermassive black hole at the heart of an ancient galaxy known as GS-9209, which is five times larger than expected for the number of stars it contains. The galaxy is one of the most distant to have been observed and recorded, lying 25bn light-years from Earth. The black hole is a "big surprise" and lends weight to the theory that such enormous black holes are responsible for shutting down star formation in early galaxies.

via The Guardian|

#ancient-galaxy #astronomy #james-webb-space-telescope

astronomy2 years ago•2 min saved

JWST captures stunning galactic phenomena.

The James Webb Space Telescope (JWST) has provided new insights into the age, structure, and composition of JD1, one of the universe's most distant known galaxies. Researchers hope that studying early galaxies like JD1 will help explain how the universe evolved into its present state. In other news, a study has discovered a critical point in time when coral reef fish shifted towards faster growth, much earlier than previously thought.

via Nature.com|

#ancient-galaxy #astronomy #coral-reef-fish