Tag

Cosmic Evolution

All articles tagged with #cosmic evolution

science16 days ago•3 min saved

Revolutionary Breakthrough Challenges 50-Year Black Hole Theory

An international team of astronomers has found evidence suggesting that the relationship between ultraviolet and X-ray emissions in quasars has evolved over billions of years, challenging the long-standing assumption of its universality and potentially impacting cosmological models. Using data from eROSITA and XMM-Newton, they observed differences in this relationship in quasars from the early universe compared to the present day, which could influence our understanding of black hole growth and the universe's expansion.

via The Daily Galaxy|

#astronomy #black-holes #cosmic-evolution

science2 months ago•5 min saved

Euclid Telescope Confirms Star Formation Has Peaked in the Cosmos

Observations from ESA's Euclid and Herschel space telescopes reveal that galaxies have gradually cooled and experienced declining star formation rates over the past 10 billion years, indicating that the universe's growth phase is ending, though it will take trillions of years before it becomes completely quiescent.

via Live Science|

#cosmic-evolution #euclid-telescope #galaxy-temperature

science2 months ago•4 min saved

James Webb Telescope Uncovers Potential Earliest Galaxy

Astronomers using the JWST have discovered a mysterious bright object, Capotauro, which could be the earliest known galaxy formed just 100 million years after the Big Bang or a unique brown dwarf in our galaxy, challenging current understanding of galaxy formation and evolution.

via Live Science|

#capotauro #cosmic-evolution #early-universe

science3 months ago•3 min saved

Black Hole Surpasses Growth Limit at Record Speed

Scientists have discovered a supermassive black hole in a distant galaxy devouring matter at 2.4 times the Eddington limit, providing evidence for super-Eddington accretion which may explain how black holes grew so rapidly in the early universe, challenging existing theories about black hole formation and growth.

via ScienceAlert|

#black-hole #cosmic-evolution #eddington-limit

science3 months ago•4 min saved

Scientists Alarmed by Black Hole Growing Faster Than Physics Allows

Astronomers have discovered a supermassive black hole, RACS J0320-35, in the early universe that is growing at over twice the theoretical limit, challenging existing models of black hole growth and cosmic evolution, and prompting new questions about the formation of massive cosmic structures.

via Rude Baguette|

#black-hole #cosmic-evolution #early-universe

science3 months ago•4 min saved

Black Hole Surpasses Growth Limits at Record Rate

Astronomers have discovered a distant quasar, RACS J0320-35, that is growing at 2.4 times the Eddington limit, consuming the equivalent of 3,000 suns annually, challenging existing theories of black hole growth and potentially reshaping our understanding of the early universe.

via Rude Baguette|

#black-hole #cosmic-evolution #early-universe

science3 months ago•3 min saved

Rare Einstein Cross Unveils Hidden Dark Matter Halo

Astronomers observed a rare Einstein cross, HerS-3, with an unusual fifth central image caused by a dark matter halo, providing new insights into dark matter distribution and the structure of distant galaxies.

via ScienceAlert|

#cosmic-evolution #dark-matter #einstein-cross

science4 months ago•6 min saved

Astrophysicists Explore the Evolution of Dark Energy

Recent research suggests that dark energy, which drives the universe's accelerated expansion, may be evolving over time rather than remaining constant, implying the existence of a new, ultra-light particle and potentially altering our understanding of the universe's future.

via Phys.org|

#axions #cosmic-evolution #cosmology

science4 months ago•5 min saved

James Webb Telescope Spots Rare 5-Galaxy Collision in Early Universe

Astronomers using JWST and Hubble have discovered an exceptionally rare system of at least five galaxies merging just 800 million years after the Big Bang, providing new insights into galaxy formation and evolution in the early universe.

via Live Science|

#cosmic-evolution #early-universe #galaxy-merger

science5 months ago•16 min saved

Record-Breaking 36 Billion Solar Mass Black Hole Discovered

A recently measured black hole at the center of a galaxy 5 billion light-years away weighs 36 billion solar masses, making it the heaviest ever precisely measured, and supporting the idea that black holes likely formed before stars in galaxy evolution.

via Big Think|

#black-holes #cosmic-evolution #galaxies

science5 months ago•3 min saved

Oldest and Largest Black Hole Offers Glimpse into the Universe's Dawn

Scientists have discovered the oldest and most distant black hole, formed over 13 billion years ago, which may serve as a portal to the universe's first days, providing insights into early cosmic evolution and black hole formation.

via NBC News|

#black-hole #cosmic-evolution #early-universe

science5 months ago•5 min saved

Webb Telescope Finds Jellyfish-Shaped Galaxy in Space

Astronomers using the JWST discovered a rare jellyfish galaxy, COSMOS2020-635829, from nearly 8 billion years ago, providing insights into galaxy evolution and star formation quenching caused by ram pressure stripping in galaxy clusters.

via Earth.com|

#cosmic-evolution #galaxy-stripping #james-webb-space-telescope

science5 months ago•2 min saved

Webb Telescope Reimagines Deep Space and Galaxy Perspectives

The James Webb Space Telescope has captured a detailed image of the Hubble Ultra Deep Field, revealing over 2,500 distant galaxies and providing new insights into galaxy formation and evolution over billions of years, especially through its deep mid-infrared observations.

via Phys.org|

#cosmic-evolution #deep-field #galaxies

science5 months ago•4 min saved

Scientists Observe the Birth of a Cosmic Monster After 8.3 Billion Years

Astronomers using the James Webb Space Telescope observed the formation of a supermassive black hole between two merging galaxies, supporting the hypothesis that such black holes can form directly from collapsing gas clouds during galaxy collisions, providing new insights into their origins.

via Yahoo Home|

#black-hole-formation #cosmic-evolution #galaxy-merger

science6 months ago•5 min saved

Time Machine Unveils Ancient Galaxy Structures

Astronomers used ALMA, combined with JWST and Hubble, to peer back to about 1 billion years after the Big Bang, revealing detailed structures in early galaxies, including star-forming regions and cold gas distributions, which shed light on galaxy formation and evolution. The survey identified unique galaxies like CRISTAL-13 and CRISTAL-10, providing insights into the conditions of the early universe and the processes that led to modern galaxies like the Milky Way.

via Space|

#alma #cosmic-evolution #cristal-survey