Tag Archive for 'Early Universe'

This Webb image shows ZF-UDS-7329, a rare massive galaxy that formed very early in the Universe. Image credit: Glazebrook et al., doi: 10.1038/s41586-024-07191-9.

Webb Discovers Massive Quiescent Galaxy with Old Stellar Population in Early Universe

Feb 16, 2024 by News Staff

The formation of galaxies by gradual hierarchical co-assembly of baryons and cold dark matter halos is a fundamental paradigm underpinning modern astrophysics...

This artist’s impression shows the evolution of the Universe beginning with the Big Bang on the left followed by the appearance of the Cosmic Microwave Background. The formation of the first stars ends the cosmic dark ages, followed by the formation of galaxies. Image credit: M. Weiss / Harvard-Smithsonian Center for Astrophysics.

Which Came First: Supermassive Black Holes or Galaxies? New Insights from Webb

Feb 6, 2024 by News Staff

New insights from the NASA/ESA/CSA James Webb Space Telescope upend theories of how black holes shape the cosmos, challenging classical understanding that...

This Hubble image shows N79, a star-forming region located 163,000 light-years away in the constellation of Dorado. Image credit: NASA / ESA / CSA / Webb / M. Meixner.

Webb Looks at Massive Star-Forming Complex in Large Magellanic Cloud

Jan 23, 2024 by News Staff

Using the Mid-InfraRed Instrument (MIRI) onboard the NASA/ESA/CSA James Webb Space Telescope, astronomers have captured a spectacular image of N79, a region...

GN-z11. Image credit: NASA / ESA / P. Oesch, Yale University / G. Brammer, STScI / P. van Dokkum, Yale University / G. Illingworth, University of California, Santa Cruz.

Webb Detects Oldest Black Hole Yet Known

Jan 18, 2024 by News Staff

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have detected a small and vigorous black hole in GN-z11, an exceptionally luminous galaxy...

This Hubble image shows various distant galaxies in the constellation of Cetus: most of the galaxies are very small, but there are a few larger galaxies and some stars where detail can be made out; in the center there is an elliptical galaxy with a brightly glowing core and a broad disk; a reddish, warped ring of light, thicker at one side, surrounds its core; a small galaxy intersects the ring as a bright dot. Image credit: NASA / ESA / Hubble / H. Nayyeri / L. Marchetti / J. Lowenthal.

Hubble Sees Myriads of Distant Galaxies in Cetus

Jan 1, 2024 by Enrico de Lazaro

A new infrared image, taken with the Wide Field Camera 3 (WFC3) on board the NASA/ESA Hubble Space Telescope, shows dozens of galaxies — including...

This simulation illustrates a galaxy disk being disturbed, leading to the propagation of a seismic ripple throughout the disk. Image credit: Bland-Hawthorn & Tepper-Garcia, University of Sydney.

ALMA Detects Seismic Ripples in Disk of Ancient Barred Spiral Galaxy

Dec 26, 2023 by Enrico de Lazaro

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have observed a disk bending wave in BRI 1335-0417, the oldest known spiral galaxy...

These NIRCam/Webb images show the multiply-imaged supernova Encore in the distant galaxy MRG-M0138. Two images of Encore (circled) are seen here, but an additional supernova image is expected to become visible around 2035. Image credit: NASA / ESA / CSA / STScI / Justin Pierel, STScI / Andrew Newman, Carnegie Institution for Science.

Webb Discovers Gravitationally-Lensed Supernova 10 Billion Light-Years from Earth

Dec 22, 2023 by News Staff

A Type Ia supernova named Encore is the second multiply-imaged supernova detected in MRG-M0138, a galaxy around 10 billion light-years away in the constellation...

The merger of two neutron stars is among the leading candidate sites for synthesizing the heavier elements on the periodic table through the r-process. Image credit: Matthew Mumpower, Los Alamos National Laboratory.

Ancient Stars were Capable of Producing Elements with Atomic Masses Greater than 260, Scientists Say

Dec 11, 2023 by News Staff

The rapid neutron capture process, or the so-called r-process, occurs in neutron-rich environments such as neutron star mergers or certain types of supernovae....

This Webb image shows member galaxies of the galaxy cluster A2744-z7p9OD. Image credit: NASA / ESA / CSA / T. Morishita, IPAC / A. Pagan, STScI.

Astronomers Detect Nickel and Other Unexpected Elements in Early Star-Forming Galaxies

Nov 23, 2023 by News Staff

Ancient starburst galaxies that formed 2-3 billion years after the Big Bang are unusually hot and contain unexpected elements, like nickel, according to...

Bogdán et al. and Goulding et al. combined data from Webb and Chandra to identify the growing black hole at the center of UHZ1. Image credit: NASA / CXC / SAO / Bogdán et al. / ESA / CSA / STScI / L. Frattare / K. Arcand.

Growing Supermassive Black Hole Detected in Early Universe

Nov 7, 2023 by Enrico de Lazaro

Observations of quasars reveal that many supermassive black holes were in place less than 700 million years after the Big Bang. However, the origin of...

Masses, sizes, and relative densities of objects in our Universe. Image credit: Charles H. Lineweaver & Vihan M. Patel, doi: 10.1119/5.0150209.

Astrophysicists Put All Objects in Universe into One Pedagogical Plot

Oct 19, 2023 by News Staff

In a new paper, astrophysicists from Australian National University present an overview of the thermal history of our Universe and the sequence of objects...

Anderson et al. show that antihydrogen atoms, released from magnetic confinement in the ALPHA-g apparatus, behave in a way consistent with gravitational attraction to the Earth. Image credit: Keyi ‘Onyx’ Li / U.S. National Science Foundation.

CERN Physicists Observe Influence of Gravity on Antimatter

Sep 29, 2023 by News Staff

Physicists from the ALPHA Collaboration at CERN’s Antimatter Factory have demonstrated the existence of gravity between antimatter and Earth, reaffirming...

An artist’s impression of Ho’oleilana. Image credit: Frédéric Durillon.

Enormous ‘Bubble’ of Galaxies Discovered in Nearby Universe

Sep 7, 2023 by News Staff

Named Ho’oleilana, the newly-discovered ‘bubble’ of galaxies is around one billion light-years across and is centered 820 million light-years away...

This image shows the orientation of the magnetic field in the distant galaxy 9io9, seen here when the Universe was only 20% of its current age -- the furthest ever detection of a galaxy’s magnetic field. Image credit: ALMA / ESO / NAOJ / NRAO / Geach et al.

ALMA Detects Galaxy’s Magnetic Field in Early Universe

Sep 6, 2023 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have detected linearly polarized thermal emission from dust grains in 9io9, a...

This image shows the Maisie’s galaxy. Image credit: NASA / STScI / CEERS / TACC / University of Texas at Austin / S. Finkelstein / M. Bagley.

Webb Confirms Two Very Luminous Galaxies in Early Universe

Aug 15, 2023 by Natali Anderson

During the first 500 million years of cosmic history, the first stars and galaxies formed, seeding the Universe with heavy elements and eventually reionizing...

This Webb image shows Earendel, a massive B-type star more than twice as hot as our Sun, and about a million times more luminous. Image credit: NASA / ESA / CSA / D. Coe, STScI, AURA, ESA & Johns Hopkins University / B. Welch, NASA’s Goddard Space Flight Center & University of Maryland, College Park / Z. Levay.

Earendel is Massive B-Type Star, Webb Astronomers Say

Aug 9, 2023 by News Staff

Earendel, the farthest known star, is a massive B-type star more than twice as hot as our Sun, and about a million times more luminous, according to an...

SPT-CL J2215-3537 resembles a blue cloud with a hazy golden light at its core. The cluster is set against the blackness of space, which is dotted with white, orange and blue specks of light. A combination of X-ray, ultraviolet, optical, and infrared light, was used to create the image. The blue cloud represents X-ray gas observed by NASA’s Chandra X-ray Observatory. The cloud is soft, and uniform in texture. Over time, galaxy clusters often merge or collide. These collisions cause disturbances and sharp features in a cluster’s gas. When a cluster takes on a smooth, calm appearance, as found here in SPT-CL J2215-3537, it indicates that no such collisions have occurred for a very long time. Astronomers call these galaxy clusters ‘relaxed.’ The hazy golden light at the heart of the cloud represents a massive central galaxy with a large amount of star formation. This central galaxy is quite isolated within the blue gas cloud. There are relatively few nearby specks of light near the central galaxy, and none are as bright or as large. No other large galaxies have been found within 600,000 light-years of the central galaxy. This implies that SPT-CL J2215-3537 has not experienced a galaxy merger in the last billion years. Image credit: NASA / CXC / MIT / M. Calzadilla / STScI / HST / N. Wolk.

Chandra Spots ‘Relaxed’ Galaxy Cluster in Distant Universe

Jul 21, 2023 by Enrico de Lazaro

The dynamically relaxed galaxy cluster SPT-CL J2215-3537 is about 8.4 billion light-years from Earth, making it the farthest galaxy cluster ever spotted...

An artist’s impression of a supermassive dark star. Image credit: Sci.News.

Webb May Have Spotted Supermassive Dark Stars

Jul 15, 2023 by Enrico de Lazaro

The first generation of stars in the Universe is yet to be observed. There are two leading theories for those objects: hydrogen burning Population III...

Our Universe is 26.7 Billion Years Old, Astrophysicist Claims

Jul 11, 2023 by News Staff

The Universe could be twice as old as current estimates, according to new research from the University of Ottawa that challenges the dominant cosmological...

CEERS 1019’s black hole existed just over 570 million years after the Big Bang and weighs only 9 million solar masses. Image credit: NASA / ESA / CSA / Leah Hustak, STScI.

Astronomers Detect Farthest Active Supermassive Black Hole Yet

Jul 6, 2023 by News Staff

Astronomers using the NASA/ESA / CSA James Webb Space Telescope have discovered an active supermassive black hole in CEERS 1019, a galaxy that existed...

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