Tag Archive for 'Galaxy'

A slice of the 3D map of galaxies collected in the first year of the DESI survey with annotations identifying key features in the map. Earth is at the tip, with the furthest galaxies plotted at distances of 11 billion light-years. Each point represents one galaxy. This version of the DESI map includes 600,000 galaxies -- less than 0.1% of the survey’s full volume. Image credit: DESI Collaboration / NOIRLab / NSF / AURA / R. Proctor.

DESI Creates Largest 3D Map of Our Expanding Universe Ever

Apr 8, 2024 by News Staff

To study dark energy’s effects over the past 11 billion years, the Dark Energy Spectroscopic Instrument (DESI) has created the largest 3D map of our...

This Hubble image shows IC 4633, a spiral galaxy some 100 million light-years away in the constellation of Apus. The color image was made from separate exposures taken in the visible and infrared regions of the spectrum with Hubble’s Advanced Camera for Surveys (ACS) and the Dark Energy Camera (DECam), which is mounted on NSF’s Víctor M. Blanco 4-m telescope at Cerro Tololo Inter-American Observatory in Chile. Five filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / L. Galbany / J. Dalcanton / Dark Energy Survey / DOE / FNAL / DECam / CTIO / NOIRLab / NSF / AURA / L. Shatz.

Hubble Space Telescope Looks at Obscured Spiral Galaxy

Apr 8, 2024 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured a striking new photo of the spiral galaxy IC 4633. This Hubble image shows IC 4633,...

Messier 82 was observed by the NASA/ESA Hubble Space Telescope in 2006, which showed the galaxy’s edge-on spiral disk, shredded clouds, and hot hydrogen gas. The NASA/ESA/CSA James Webb Space Telescope observed the core of Messier 82, capturing in unprecedented detail the structure of the galactic wind and characterizing individual stars and star clusters. Image credit: NASA / ESA / CSA / Hubble / Webb / STScI / A. Bolatto, UMD.

Webb Observes Hidden Depths of Messier 82

Apr 3, 2024 by Enrico de Lazaro

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have captured a new image of the central starburst region of Messier 82 (M82, NGC 3034 or...

This Webb image shows I Zwicky 18, a blue compact dwarf galaxy some 59 million light-years away in the constellation of Ursa Major. A companion galaxy resides nearby to I Zwicky 18 can be seen at the bottom of the image. The companion may be interacting with the dwarf galaxy and may have triggered that galaxy’s recent star formation. Image credit: NASA / ESA / CSA / Webb / Hirschauer et al.

Webb Images Extremely Metal-Poor, Star-Forming, Blue Compact Dwarf Galaxy

Apr 3, 2024 by Enrico de Lazaro

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have captured a spectacular image of I Zwicky 18 (I Zw 18 for short), the archetypal extremely...

An artist’s impression of the center of the starburst galaxy NGC 253. Image credit: NRAO / AUI / NSF.

ALMA Detects Over One Hundred Molecular Species in Nearby Starburst Galaxy

Apr 2, 2024 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have detected over 100 molecular species in the center of the starburst galaxy...

This Hubble image of a star-forming region containing massive, young, blue stars in the Tarantula Nebula. Image credit: NASA / ESA / STScI / Francesco Paresce, INAF-IASF Bologna / Robert O’Connell, UVA / SOC-WFC3 / ESO.

Hubble Space Telescope Focuses on Young Stars

Apr 2, 2024 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have collected information on almost 500 stars as part of the Ultraviolet Legacy Library of Young...

Hidden in this deep sky image (left) is Uma3/U1, a miniscule group of stars (right) bound together by their own gravity in orbit around the Milky Way Galaxy. Image credit: CFHT / S. Gwyn / S. Smith.

Astronomers Discover Faintest Known Milky Way Satellite

Apr 1, 2024 by Enrico de Lazaro

Ursa Major III/UNIONS 1 (UMa3/U1 for short) is the least luminous and lowest-mass Milky Way satellite ever discovered, and possibly one of the most dark...

This image shows Arp 72, a galaxy pair that includes NGC 5996 (large spiral galaxy) and NGC 5994 (its smaller companion, in the lower left of the image). The color image was made from separate exposures taken in the visible and infrared regions of the spectrum with Hubble’s Advanced Camera for Surveys (ACS) and the Dark Energy Camera (DECam), which is mounted on NSF’s Víctor M. Blanco 4-m telescope at Cerro Tololo Inter-American Observatory in Chile. Four filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / L. Galbany / J. Dalcanton / Dark Energy Survey / DOE / FNAL / DECam / CTIO / NOIRLab / NSF / AURA.

Hubble Captures Star-Forming and Interacting Galaxy Pair

Apr 1, 2024 by Enrico de Lazaro

This amazing view of a pair of spiral galaxies called Arp 72 is a violent collision happening in slow motion, according to the Hubble team. This image...

This image from the Event Horizon Telescope shows the polarized view of Sagittarius A*; the lines overlaid on this image mark the orientation of polarization, which is related to the magnetic field around the shadow of the black hole. Image credit: EHT Collaboration.

Event Horizon Telescope Observes Twisted Magnetic Field around Milky Way’s Central Black Hole

Mar 27, 2024 by News Staff

According to astronomers’ best models of black hole evolution, the magnetic fields in the accretion disk need to be strong enough to push the accreting...

This image shows the location and distribution of Shakti (yellow) and Shiva (blue) stars throughout the Milky Way. Image credit: ESA / Gaia / DPAC / K. Malhan.

Astronomers Find Two Ancient Substructures in Inner Milky Way

Mar 22, 2024 by News Staff

Dubbed Shakti and Shiva, the newly-identified structures are between 12 and billion years old — so ancient they likely formed before even the oldest...

This composite image shows the quasar H1821+643. Image credit: NASA / CXC / University of Nottingham / Russell et al. / NSF / NRAO / VLA / SAO / N. Wolk.

Astronomers Find Underachieving Quasar in Distant Galaxy Cluster

Mar 22, 2024 by News Staff

Using NASA’s Chandra X-ray Observatory and NSF’s Karl G. Jansky Very Large Array (VLA), astronomers have found that H1821+643 — the nearest quasar...

Storey-Fisher et al. present the all-sky quasar catalog Quaia, that samples the largest comoving volume of any existing spectroscopic quasar sample. Image credit: Storey-Fisher et al., doi: 10.3847/1538-4357/ad1328.

Astronomers Create Largest-Ever Map of Universe’s Quasars

Mar 19, 2024 by News Staff

The new map, dubbed Quaia, includes around 1,295,502 quasars from across the visible Universe and could help astronomers better understand the properties...

This Hubble image shows UGC 5829, an irregular galaxy some 30 million light-years away in the constellation of Leo Minor. Image credit: NASA / ESA / Hubble / R. Tully / M. Messa.

Hubble Space Telescope Captures Stunning Shot of Spider Galaxy

Mar 18, 2024 by Enrico de Lazaro

A new photo from the NASA/ESA Hubble Space Telescope shows the nearby irregular galaxy UGC 5829, which is also known as the Spider Galaxy. This Hubble...

This image of NGC 5468, a galaxy located some 142 million light-years away in the constellation Virgo, combines data from Hubble and s Webb. Image credit: NASA / ESA / CSA / STScI / A. Riess, JHU & STScI.

Webb Measurements Shed New Light on ‘Hubble Tension’ Mystery

Mar 12, 2024 by News Staff

When you are trying to solve one of the biggest conundrums in cosmology, you should triple check your homework. The puzzle, called the Hubble Tension,...

This image from Webb’s NIRCam instrument of star-forming region NGC 604 shows how stellar winds from bright, hot young stars carve out cavities in surrounding gas and dust. Image credit: NASA / ESA / CSA / STScI.

Webb Captures Spectacular Images of NGC 604

Mar 11, 2024 by News Staff

NGC 604 is similar to familiar starbirth regions in our Milky Way Galaxy, such as the Orion Nebula, but it is much larger in extent and contains many more...

This Hubble image shows LEDA 42160, a dwarf galaxy located 53.5 million light-years away in the constellation of Virgo. Image credit: NASA / ESA / Hubble / M. Sun.

Hubble Space Telescope Images Magellanic Spiral Galaxy

Mar 11, 2024 by Enrico de Lazaro

NASA has released a stunning new image snapped by the NASA/ESA Hubble Space Telescope of the little-known dwarf galaxy LEDA 42160. This Hubble image shows...

This two-part graphic shows evidence of a gaseous clump of helium in the halo surrounding galaxy GN-z11. In the top portion, at the far right, a small box identifies GN-z11 in a field of galaxies. The middle box shows a zoomed-in image of the galaxy. The box at the far left displays a map of the helium gas in the halo of GN-z11, including a clump that does not appear in the infrared colors shown in the middle panel. In the lower half of the graphic, a spectrum shows the distinct ‘fingerprint’ of helium in the halo. The full spectrum shows no evidence of other elements and so suggests that the helium clump must be fairly pristine, made of hydrogen and helium gas left over from the big bang, without much contamination from heavier elements produced by stars. Theory and simulations in the vicinity of particularly massive galaxies from these epochs predict that there should be pockets of pristine gas surviving in the halo, and these may collapse and form Population III star clusters. Image credit: NASA / ESA / CSA / Ralf Crawford, STScI.

Webb Detects Pristine Helium Clump in GN-z11’s Halo

Mar 5, 2024 by Enrico de Lazaro

GN-z11 is an exceptionally luminous galaxy that existed when our Universe was only 420 million years old, making it one of the earliest and most distant...

This Hubble image shows NGC 4423, a spiral galaxy some 55 million light-years away in the constellation of Virgo. Image credit: NASA / ESA / Hubble / M. Sun.

Hubble Space Telescope Spies Small Spiral Galaxy Edge-on

Mar 4, 2024 by Enrico de Lazaro

NASA has released a beautiful photo taken by the Hubble Space Telescope of the spiral galaxy NGC 4423. This Hubble image shows NGC 4423, a spiral galaxy...

An artist’s impression of a supermassive black hole binary in the elliptical galaxy B2 0402+379. Image credit: NOIRLab / NSF / AURA / J. daSilva / M. Zamani.

Astronomers Measure Heaviest Pair of Supermassive Black Holes Ever Found

Mar 1, 2024 by News Staff

Astronomers using archival data from the Gemini North telescope have measured a binary supermassive black hole located within the elliptical galaxy B2...

Astronomers estimate 50,000 sources of near-infrared light are represented in this Webb image of the galaxy cluster Abell 2744. Image credit: NASA / ESA / CSA / I. Labbe, Swinburne University of Technology / R. Bezanson, University of Pittsburgh / A. Pagan, STScI.

Photons from Dwarf Galaxies Reionized Early Universe, New Research Suggests

Feb 29, 2024 by News Staff

The reionization of the Universe occurred some 500 to 900 million years after the Big Bang. It represents the transformation of neutral hydrogen into ionized...

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