Astronomy News

Astornomers Spot Progenitor of Milky Way-Like Galaxy in Early Universe

An artist’s impression of our Milky Way Galaxy in its youth. The Sparkler galaxy provides a snap-shot of an infant Milky Way as it accretes mass over cosmic time. Image credit: James Josephides, Swinburne University.
Feb 6, 2023 by News Staff

We are seeing the ‘Sparkler’ galaxy from 9.1 billion years ago, some 4 billion years after the Big Bang. An artist’s impression of our Milky Way Galaxy in its youth. The Sparkler galaxy provides a snap-shot of an infant Milky Way as it accretes mass over cosmic time. Image credit: James Josephides, Swinburne University. The ‘Sparkler’ galaxy was discovered in 2022 using some of the first data from the NASA/ESA/CSA James Webb Space Telescope. It...

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This Hubble image shows Donatiello II (center), an ultra-faint dwarf galaxy some 11.4 million light-years away in the constellation of Sculptor. Image credit: NASA / ESA / Hubble / B. Mutlu-Pakdil / G. Donatiello.

Hubble Observes Ultra-Faint Dwarf Galaxy Donatiello II

Feb 6, 2023 by Enrico de Lazaro

A new image taken with NASA/ESA Hubble Space Telescope shows Donatiello II, a recently-discovered dwarf galaxy associated with the nearby spiral galaxy...

This image shows how microlensing was used to measure the mass of the white dwarf LAWD 37. The inset box plots how the dwarf passed in front of a background star in 2019. The wavy blue line traces the dwarf’s apparent motion across the sky as seen from Earth. Image credit: NASA / ESA / Peter McGill, UC Santa Cruz, IoA / Kailash Sahu, STScI / Joseph DePasquale, STScI.

Astronomers Directly Measure Mass of Isolated White Dwarf

Feb 2, 2023 by News Staff

In November 2019, the nearby single, isolated white dwarf LAWD 37 aligned closely with a distant background source and caused a so-called microlensing...

This composite image shows at least three galaxy clusters colliding in a jumbled scene. The resulting giant galaxy cluster, known as Abell 2256, resembles a grainy, pixilated, sky blue cloud topped with licks of flaming red hair. The cloud is adorned with red shapes and streaks, and set against a black background heavily dotted with colorful specks. The image combines X-ray, radio, optical, and infrared data. Image credit: NASA / CXC / University of Bolonga / Rajpurohit et al. / ESA / XMM-Newton / LOFAR / ASTRON / NCRA / TIFR / GMRT / NSF / NRAO / VLA / Pan-STARRS.

Astronomers Capture Ongoing Collision of Three Galaxy Clusters

Feb 1, 2023 by News Staff

Using NASA’s Chandra X-ray Observatory, ESA’s XMM-Newton and three radio telescopes (the Giant Metrewave Radio Telescope, the Low Frequency Array,...

This Webb image shows LEDA 2046648, a spiral galaxy one billion light-years away in the constellation of Hercules. Image credit: NASA / ESA / CSA / Webb / A. Martel.

Webb Spots Large Spiral Galaxy in Hercules

Jan 31, 2023 by Enrico de Lazaro

LEDA 2046648 is accompanied by a profusion of smaller, more distant galaxies which range from fully-fledged spirals to mere bright smudges. This Webb image...

An artist’s impression of the Robert C. Byrd Green Bank Telescope receiving signals from space. Image credit: Danielle Futselaar / Breakthrough Listen.

Artificial Intelligence Detects New Technosignature Signals of Interest

Jan 31, 2023 by News Staff

In a new paper published in the journal Nature Astronomy, astronomers with Breakthrough Listen Initiative — the largest ever scientific research...

This illustration shows what Chariklo and its rings could look like, based on our current understanding. Image credit: NASA / ESA / CSA / Leah Hustak, STScI.

Webb Detects Water Ice on Chariklo, Spies Its Ring System

Jan 30, 2023 by News Staff

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have captured the reflectance spectrum of the double-ringed centaur 10199 Chariklo and observed...

This new Hubble image shows part of the Tarantula Nebula, which is located about 163,000 light-years away in the southern constellation of Dorado: wispy, nebulous clouds extend from the lower-left of the image; at the top and right the dark background of space can be seen through the sparse nebula; along the left and in the corner are many layers of brightly-colored gas and dark, obscuring dust; a cluster of small, bright blue stars in the same corner expands out across the image. Image credit: NASA / ESA / Hubble / C. Murray / E. Sabbi / Y.-H. Chu.

Hubble Space Telescope Focuses on Tarantula Nebula

Jan 30, 2023 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured a spectacular image of a very turbulent part of the Tarantula Nebula. This new Hubble...

An artist’s impression of a magnetar eruption. Image credit: NASA’s Goddard Space Flight Center.

Astronomers Detect Spin-Down Glitch in Distant Magnetar

Jan 27, 2023 by News Staff

Magnetars are a special subset of the isolated neutron star family, with X-ray and radio emission mainly powered by the decay of their immense magnetic...

This is an artist's impression of a rocky and water-rich asteroid being torn apart by the strong gravity of the white dwarf star GD 61. Image credit: Mark A. Garlick, Space-art.co.uk / University of Warwick / University of Cambridge.

Small Asteroid Flew Safely Past Earth This Week

Jan 27, 2023 by News Staff

A small near-Earth asteroid designated 2023 BU made its closest approach on January 26, 2023 at 7:29 p.m. EST (4:29 p.m. PST, or January 27, 2023 at 00:29...

An orbiting star begins to eclipse its partner, a rapidly rotating, superdense stellar remnant called a pulsar, in this illustration. Image credit: NASA / Sonoma State University / Aurore Simonnet.

Fermi Detects Gamma-Ray Eclipses from Seven ‘Spider’ Binary Systems

Jan 26, 2023 by News Staff

Spider binary systems contain a pulsar — the superdense, rapidly rotating remains of a star that exploded as a supernova — that slowly erodes...

This image shows the distant galaxy GHZ2/GLASS-z12. Image credit: NASA / ESA / CSA / T. Treu, UCLA / NAOJ / T. Bakx, Nagoya University.

ALMA Confirms Discovery of Oxygen-Rich Galaxy in Very Early Universe

Jan 25, 2023 by News Staff

GHZ2/GLASS-z12, initially identified in the JWST GLASS survey, existed when the Universe was only 367 million years old (redshift z=12.117). This image...

Digital art by Les Bossinas, Cortez III Service Corp., 1998.

Humans Will Likely Not Have Ability to Visit Nearby Exoplanets Anytime Soon, Expert Says

Jan 25, 2023 by News Staff

Astronomers recently announced the discovery of TOI-700e, a habitable-zone, Earth-sized planet some 102 light-years away in the southern constellation...

This image is a small extract of the DECaPS2 survey of the Milky Way. Image credit: DECaPS2 / DOE / FNAL / DECam / CTIO / NOIRLab / NSF / AURA / M. Zamani & D. de Martin, NSF’s NOIRLab.

Astronomers Release Gargantuan Survey of Milky Way’s Galactic Plane

Jan 24, 2023 by News Staff

The second data release of the Dark Energy Camera Plane Survey (DECaPS2), which took two years to complete and produced more than 10 terabytes of data...

This Webb image features the central region of the Chameleon I dark molecular cloud, which resides 630 light-years away in the constellation of Chamaeleon; the cold, wispy cloud material (blue, center) is illuminated in the infrared by the glow of the young, outflowing protostar Ced 110 IRS 4 (orange, upper left); the light from numerous background stars, seen as orange dots behind the cloud, can be used to detect ices in the cloud, which absorb the starlight passing through them. Image credit: NASA / ESA / CSA / M. Zamani, ESA & Webb / F. Sun, Steward Observatory / Z. Smith, Open University / Ice Age ERS Team.

Webb Reveals Rich Composition of Interstellar Molecular Cloud Ices

Jan 23, 2023 by News Staff

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have detected water ice as well as frozen forms of carbonyl sulfide, ammonia, methane, and...

Computer simulation of neutron stars merging to form a black hole, with their accretion disks interacting to produce electromagnetic waves. Image credit: L. Rezolla, AEI / M. Koppitz, AEI & Zuse-Institut Berlin.

Gravitational Waves May Reveal Start of Time, Physicists Say

Jan 23, 2023 by News Staff

Princeton Plasma Physics Laboratory physicists Deepen Garg and Ilya Dodin say they can better understand the state of the cosmos shortly after the Big...

This Hubble image shows two stars: the Orion variable star V 372 Orionis and the emission-line star BD-05 1307. Image credit: NASA / ESA / Hubble / J. Bally / M. Robberto.

Hubble Spots Two Prominent Stars in Orion Nebula

Jan 23, 2023 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have taken a detailed image of a small part of the famous Orion Nebula. This Hubble image shows two...

The radio image of SDSS J0826+5630. Image credit: Chakraborty & Roy, doi: 10.1093/mnras/stac3696.

Astronomers Detect Radio Signal from Strongly Gravitationally Lensed Galaxy

Jan 18, 2023 by News Staff

Using archival data from the Giant Metrewave Radio Telescope, astronomers have captured a radio signal at a specific wavelength known as the 21 cm line...

A part of the Galactic plane as seen by the ASKAP radio telescope and the Parkes radio telescope, Murriyang, showing supernova remnants and the space between the stars. Image credit: R. Kothes, NRC / PEGASUS Team.

Radio Astronomers Discover New Supernova Remnants in Milky Way Galaxy

Jan 17, 2023 by News Staff

Using the ASKAP and Parkes radio telescopes in Australia, astronomers have observed a large section of the Galactic plane of the Milky Way. A part of the...

This illustration shows the inner and outer halos of our Milky Way Galaxy. Image credit: NASA / ESA / A. Feild, STScI.

Milky Way’s Stellar Halo is At Least Two Million Light-Years Across

Jan 16, 2023 by News Staff

Astronomers from the University of California, Santa Cruz and elsewhere have discovered 208 new RR Lyrae variable stars in the halo of our Milky Way Galaxy;...

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