Tag Archive for 'Universe'

In this false-color Webb image, the foreground galaxy is shown in blue, while the SPT0418-47 galaxy is red; the organic molecules are highlighted in orange. Image credit: J. Spilker / S. Doyle / NASA / ESA / CSA.

Webb Finds Complex Organic Molecules in Early Universe

Jun 5, 2023 by Enrico de Lazaro

Using the NASA/ESA/CSA James Webb Space Telescope, astronomers have detected polycyclic aromatic hydrocarbons in SPT-S J041839-4751.9 (SPT0418-47 for short),...

An artist’s rendition of a giant star in orbit around a low-mass black hole. Image credit: Sci-News.com.

All Large Objects in Universe Will Eventually Evaporate, Astrophysicists Say

Jun 5, 2023 by News Staff

According to quantum mechanics, a vacuum state is populated by virtual particle pairs undergoing spontaneous creation and annihilation processes. These...

A projected image of the galaxy JD1 (inset), which is located behind the galaxy cluster Abell 2744. Image credit: Guido Roberts-Borsani, UCLA / NASA / ESA / CSA / Swinburne University of Technology / University of Pittsburgh / STScI.

Ultra-Faint Dwarf Galaxy Spotted Just 480 Million Years after Big Bang

Jun 3, 2023 by News Staff

Residing behind a galaxy supercluster called Abell 2744, the JD1 galaxy is gravitationally lensed and displays three images. A projected image of the galaxy...

This enormous image from Webb reveals never-before-seen details of the Stephan’s Quintet. Image credit: NASA / ESA / CSA / STScI.

Parity Symmetry Violation in Orientation of Galactic Shapes Could Explain Abundance of Matter

May 23, 2023 by News Staff

Symmetry is a tidy and attractive idea that falls apart in our untidy Universe. Indeed, since the 1960s, some kind of broken symmetry has been required...

An artist’s rendition of SN 2020eyj, a white dwarf star that went supernova after pulling material from a helium companion star. Image credit: Adam Makarenko / W.M. Keck Observatory.

Astronomers Detect Radio Waves from Type Ia Supernova

May 18, 2023 by News Staff

The detection of the Type Ia supernova SN 2020eyj at radio wavelengths show that the exploded white dwarf had a helium-rich companion. An artist’s rendition...

The enlarged inset view reveals four images of SN Refsdal, spotted in 2014, arranged around a giant elliptical galaxy within the cluster. The light from the supernova passes so closely to the galaxy’s dense core that several light paths are redirected and focused toward Earth. The result is that astronomers see four images that form an Einstein Cross. The blue streaks wrapping around the galaxy are the stretched images of SN Refsdal’s parent spiral galaxy, which has been distorted by the warping of space. Computer models of the cluster predict that another image of the stellar blast will appear within 5 years. The red circle marks the possible location of the next supernova image. Astronomers may have missed an earlier appearance of the supernova in 1995, as marked by the blue circle. These multiple appearances of the exploding star are due to the various paths its light is taking through the maze of clumpy dark matter in the galactic grouping. Each image takes a different route through the cluster and arrives at a different time, due, in part, to differences in the length of the pathways the light follows to reach Earth. Image credit: NASA / ESA / S. Rodney, JHU / FrontierSN team / T. Treu, UCLA / P. Kelly, UC Berkeley / GLASS team / J. Lotz, STScI / Frontier Fields team / M. Postman, STScI / CLASH team / Z. Levay, STScI.

Light from Supernova Refsdal Helps Astronomers Measure Universe’s Expansion Rate

May 17, 2023 by News Staff

The gravitationally lensed Supernova (SN) Refsdal was discovered by University of Minnesota astronomer Patrick Kelly in 2014 in the field of MACS J1149.6+2223,...

The highly variable magnetic field around the source of FRB 20190520B. Image credit: Di Li / ScienceApe / CAS.

Astronomers Detect Highly Variable Magnetic Field around Source of Repeating Fast Radio Burst

May 12, 2023 by News Staff

Fast radio bursts (FRBs) are brief flashes of radio waves from distant galaxies that are probably emitted by neutron stars. Some FRBs repeat, which enables...

An artist’s impression of a supermassive black hole. Image credit: University of Hawai’i at Mānoa.

Astronomers Detect Supermassive Black Holes in ‘Cosmic Noon’ Galaxy Pairs

May 11, 2023 by News Staff

Astronomers at Newcastle University and Colby College have developed a new technique to determine how likely it is that two galaxies are very close together...

This artist’s impression shows a distant gas cloud that contains different chemical elements, illustrated here with schematic representations of various atoms. Image credit: L. Calçada / M. Kornmesser / ESO.

VLT Detects Chemical Signatures of Universe’s First Stars in Distant Gas Clouds

May 4, 2023 by News Staff

Astronomers using ESO’s Very Large Telescope (VLT) have detected three distant gas clouds whose chemical composition matches what they expect from the...

An artist’s impression of FRB 110523 reaching Earth; the colors represent the burst arriving at different radio wavelengths, with long wavelengths (red) arriving seconds after short wavelengths (blue). Image credit: Jingchuan Yu / Beijing Planetarium.

Astronomers Discover 25 New Repeating Fast Radio Bursts

Apr 26, 2023 by News Staff

Fast radio bursts (FRBs) are microsecond-millisecond flashes of radio waves that are detectable over extragalactic distances; some FRB sources repeat....

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

Webb Spots Galaxy Protocluster in Early Universe

Apr 25, 2023 by News Staff

The seven galaxies highlighted in this new image from the NASA/ESA/CSA James Webb Space Telescope have been confirmed to be at a distance that astronomers...

Shapiro et al. show that the development of complex life on planets in the habitable zone can be sustained from a few percent of oxygen upward, being robust for a large range of stellar characteristics and against major extraterrestrial cataclysms. Image credit: MPS / Hormesdesign.de.

Metal-Poor Stars are More Suitable for Evolution of Life on Their Planets: Study

Apr 18, 2023 by Natali Anderson

Atmospheric ozone and oxygen protect the biosphere of our planet against harmful ultraviolet radiation. In new research, astronomers modeled atmospheres...

Color-composite image of the galaxy cluster RX J2129.6+0005; green circles indicate three lensed images of the dwarf starburst galaxy RX J2129-z95. Image credit: Williams et al., doi: 10.1126/science.adf5307.

Webb Finds Tiny Star-Forming Galaxy in Early Universe

Apr 13, 2023 by Enrico de Lazaro

The newly-discovered galaxy, named RX J2129-z95, appears as three images due to the gravitational lensing of the foreground galaxy cluster RX J2129.6+0005....

Astronomers from the ACT Collaboration used NSF’s Atacama Cosmology Telescope to create this new map of the dark matter; the orange regions show where there is more mass; purple where there is less or none; the typical features are hundreds of millions of light years across; the whitish band shows where contaminating light from dust in our Milky Way Galaxy, measured by ESA’s Planck satellite, obscures a deeper view. Image credit: ACT Collaboration.

Astronomers Create Most Detailed Map of Dark Matter

Apr 11, 2023 by News Staff

Using data from NSF’s Atacama Cosmology Telescope, astronomers have produced the most detailed map of dark matter distributed across one quarter of the...

To the lower right of this Webb image is the lensing cluster SDSS J1226+2149 with a very large and bright elliptical galaxy at its center; thin, reddish, stretched-out arcs surround it; one arc is thick and much brighter; another red galaxy is large and warped, just next to the cluster core. Image credit: NASA / ESA / CSA / Webb / J. Rigby.

Webb Spots Cosmic Seahorse

Apr 5, 2023 by News Staff

The lensing galaxy cluster SDSS J1226+2149 has magnified distant galaxies, warping their shapes and creating the bright smears of light spread throughout...

This artist’s concept shows the brilliant glare of two quasars residing in the cores of two galaxies that are in the chaotic process of merging. Image credit: NASA / ESA / Joseph Olmsted, STScI.

Merger of Two Massive Disk Galaxies Produces Dual Quasar

Apr 5, 2023 by News Staff

Using the NASA/ESA Hubble Space Telescope and other space and ground-based observatories, astronomers have discovered SDSS J0749+2255, a closely bound...

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.

Astrophysicists Find New Evidence for Standard Model of Cosmology

Apr 4, 2023 by News Staff

Astrophysicists from SLAC National Accelerator Laboratory and Stanford University have measured the X-ray emission from galaxy clusters, which revealed...

An artist’s impression of the AT2018cow stellar explosion. Image credit: Phil Drury, University of Sheffield.

Astronomers Spot Flattest Known Stellar Explosion in Universe

Apr 3, 2023 by News Staff

The newly-observed stellar explosion, named AT2018cow, occurred approximately 180 million light-years away from Earth and belongs to a special class called...

This image shows the Spiderweb protocluster, seen at a time when the Universe was only 3 billion years old. Image credit: ESO / Di Mascolo et al. / NASA / ESA / Hubble / H. Ford.

ALMA Detects Huge Reservoir of Hot Gas in Very Distant Galaxy Protocluster

Mar 29, 2023 by News Staff

The galaxy protocluster is question is forming around the recently-discovered Spiderweb galaxy (also known as MRC 1138-262 or PKS 1138-262), an object...

Hartwig et al. shed a new light on solving the mystery of the first stars from the complex data set of Galactic archaeology surveys. Image credit: Kavli IPMU.

Universe’s First Stars were Born in Small Clusters, Study Suggests

Mar 23, 2023 by News Staff

In unveiling the nature of the first stars, the main astronomical clue is the elemental compositions of the second generation of stars, observed as extremely...

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