Tag Archive for 'Galaxy'

This Hubble image shows the galaxy cluster MACS J0138.0-2155, which is so massive that its gravity bent and magnified light streaming not only from an extremely distant background galaxy but also from a supernova event in this galaxy. The color image was made using observations from eight different filters spread across Hubble’s Advanced Camera for Surveys (ACS) and Wide Field Camera 3 (WFC3). The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / A. Newman / M. Akhshik / K. Whitaker.

Hubble Observes Multiply-Imaged, Gravitationally Lensed Supernova

Jul 19, 2021 by Enrico de Lazaro

The multiply-imaged supernova AT2016jka appeared in the distant giant galaxy MRG-M0138, gravitationally lensed by the foreground galaxy cluster MACS J0138.0-2155. This...

This image combines observations of the nearby galaxies NGC 1300, NGC 1087, NGC 3627 (top, from left to right), NGC 4254 and NGC 4303 (bottom, from left to right) taken with the Multi-Unit Spectroscopic Explorer on ESO’s Very Large Telescope. Image credit: ESO / PHANGS.

Astronomers Focus on Star-Forming Regions in Nearby Galaxies

Jul 16, 2021 by News Staff

Astronomers know that stars are born in clouds of gas, but what sets off star formation, and how galaxies as a whole play into it, remains a mystery. To...

This Hubble image shows two galaxies, 2MASX J03193743+4137580 (left) and UGC 2665 (right), in the Perseus cluster. Image credit: NASA / ESA / Hubble / W. Harris / L. Shatz.

Hubble Spots Enormous Galaxies in Perseus Cluster

Jul 5, 2021 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured a striking photo of part of the Perseus cluster, a collection of thousands of galaxies approximately 240...

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.

First Generation of Stars Emerged 250-350 Million Years after Big Bang, Astronomers Say

Jun 24, 2021 by News Staff

A team of astronomers from the United Kingdom and the United States has examined six of the most distant galaxies currently known and found that the distance...

Siraj & Loeb explore the possibility that accretion flares resulting from the tidal disruption of small Oort Cloud bodies by a putative primordial black hole could power an observable optical signal that could be searched for with the upcoming Vera C. Rubin Observatory Legacy Survey of Space and Time. Image credit: Sci-News.com / Zdeněk Bardon / ESO.

Does Self-Interacting Dark Matter Produce Seed Black Holes?

Jun 21, 2021 by News Staff

Astrophysical observations show that supermassive black holes exist when the Universe is just 800 million years old after the Big Bang (just 6% of its...

This Hubble image shows the interacting galaxy system IC 1623. The color image is made up of observations from Hubble’s Wide Field Camera 3 (WFC3) in the ultraviolet, infrared, and optical parts of the spectrum. It is based on data obtained through eight filters. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / R. Chandar.

Hubble Watches Cataclysmic Cosmic Collision: IC 1623

Jun 21, 2021 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured an amazing new photo of the interacting galaxy system IC 1623. This Hubble image shows...

This Hubble image shows NGC 1052-DF2, an ultra-diffuse galaxy located 72 million light-years away in the constellation of Cetus. Image credit: NASA / ESA / Hubble / STScI / Zili Shen & Pieter van Dokkum, Yale University / Shany Danieli, IAS / Alyssa Pagan, STScI.

Astronomers Confirm Existence of Dark-Matter-Deficient Galaxies

Jun 18, 2021 by Enrico de Lazaro

In a new study, astronomers used data from the NASA/ESA Hubble Space Telescope to calculate a more accurate distance to an ultra-diffuse galaxy called...

An artist’s impression of a galactic wind driven by a supermassive black hole located in the center of a galaxy. Image credit: ALMA / ESO / NAOJ / NRAO.

ALMA Detects Powerful Black-Hole Wind in Distant Quasar

Jun 17, 2021 by News Staff

Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have detected a galactic-scale supermassive black hole-driven wind in HSC J124353.93+010038.5...

The Giant Arc: the gray contours represent the Mg II absorbers, which indicate the distribution of galaxies and galaxy clusters; the blue dots represent the background quasars; the Giant Arc is centered on this figure spanning -600 to +400 Mpc on the x-axis. Image credit: Lopez et al.

3.3-Billion-Light-Year-Long Arc of Galaxies Discovered

Jun 16, 2021 by News Staff

An international team of astronomers from the United States and the United Kingdom has made the discovery of a giant, almost symmetrical arc of galaxies...

An artist’s impression of cosmic filaments. Image credit: A. Khalatyan/ J. Fohlmeister / Leibniz-Institut für Astrophysik Potsdam.

Astronomers Spot Spinning Filaments of Galaxies

Jun 16, 2021 by News Staff

Cosmic filaments are cylindrical tendrils of matter hundreds of millions of light-years across. In new research, published in the journal Nature Astronomy,...

An artist’s conception of the Milky Way Galaxy. Image credit: Pablo Carlos Budassi / CC BY-SA 4.0.

Milky Way’s Dark Matter Halo is Slowing Down Galactic Bar’s Spin, Astronomers Say

Jun 15, 2021 by News Staff

According to new research by astronomers from the University of Oxford and University College London, the spin of the bar of our Milky Way Galaxy —...

Sloan Digital Sky Survey archival image from March 2004 (left) and the image from the observation campaign of B2 1420+32 taken by Mishra et al. in January 2020 using ASAS-SN (right); the blazar’s brightness increased by a factor of 100. Image credit: SDSS / Mishra et al., doi: 10.3847/1538-4357/abf63d.

‘Changing-Look’ Blazar Spotted 6.3 Billion Light-Years Away

Jun 14, 2021 by News Staff

Astronomers have performed photometric and spectroscopic observations of B2 1420+32, a blazar with a collection of ‘changing-look’ features. Sloan...

This Hubble image shows NGC 3254, a spiral galaxy located some 118 million light-years away in the constellation of Leo Minor. The color image was made from separate exposures taken in the visible and infrared regions of the spectrum with Hubble’s Wide Field Camera 3 (WFC3). 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 / Riess et al.

Hubble Space Telescope Looks at NGC 3254

Jun 14, 2021 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have taken a detailed image of a spectacular part of the spiral galaxy NGC 3254. This Hubble image...

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.

CHIME Telescope Discovers 535 New Fast Radio Bursts

Jun 11, 2021 by News Staff

The Canadian Hydrogen Intensity Mapping Experiment (CHIME) has detected 535 new fast radio bursts — including 18 repeating sources — during...

This image, taken by the FORS2 instrument on ESO’s Very Large Telescope, shows the grand design spiral galaxy Messier 99. It is based on data obtained through four filters. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: ESO.

VLT Observes Grand Design Spiral Galaxy Messier 99

Jun 7, 2021 by Enrico de Lazaro

ESO has released a beautiful photo taken by the FOcal Reducer and low dispersion Spectrograph 2 (FORS2) on ESO’s Very Large Telescope (VLT) of the spiral...

This Hubble image shows the spiral galaxy NGC 4680. The color image was made from separate exposures taken in the visible and infrared regions of the spectrum with Hubble’s Wide Field Camera 3 (WFC3). 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 / Riess et al.

Hubble Captures Spectacular Image of NGC 4680

Jun 7, 2021 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has produced an outstanding image of the beautiful spiral galaxy NGC 4680. This Hubble image shows the spiral galaxy...

VST mosaic of the Hydra I: NGC 3311 and NGC 3309 are the two brightest cluster galaxies located close to the image center; the 27 low-surface brightness galaxies are marked as white circles; cyan squares show the 12 ultra-diffuse galaxies. Image credit: Iodice et al., doi: 10.1051/0004-6361/202038523.

Astronomers Find Twelve Ultra-Diffuse Galaxies in Hydra I Cluster

Jun 1, 2021 by Natali Anderson

Astronomers using ESO’s VLT Survey Telescope, a 2.6-m wide-field optical survey telescope at Paranal Observatory in Chile, have discovered 27 low-surface...

This deep field image from the Dark Energy Survey is teeming with galaxies; in fact, nearly every single object in this image is a galaxy; some exceptions include a couple of dozen asteroids as well as a few handfuls of foreground stars in our own Milky Way Galaxy. Image credit: Dark Energy Survey / DOE / FNAL / DECam / CTIO / NOIRLab / NSF / AURA / T.A. Rector, University of Alaska Anchorage & NOIRLab / M. Zamani, NOIRLab / D. de Martin, NOIRLab.

Dark Energy Survey Makes Most Precise Measurements Yet of Universe’s Composition and Growth

May 31, 2021 by News Staff

Over the course of six years, astronomers with the Dark Energy Survey (DES) surveyed 5,000 square degrees — almost one-eighth of the entire sky —...

This Hubble image shows the spiral galaxy NGC 691. The image includes optical and infrared observations from Hubble’s Wide Field Camera 3 (WFC3) instrument. 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 / A. Riess / M. Zamani.

Hubble Captures Striking New Image of NGC 691

May 31, 2021 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured an absolutely beautiful photo of a spiral galaxy called NGC 691. This Hubble image shows the spiral galaxy...

This panorama shows the central region of the Milky Way Galaxy. It builds on previous surveys from NASA’s Chandra X-ray Observatory and other telescopes, and expands Chandra’s high-energy view farther above and below the plane of the Galaxy than previous imaging campaigns. X-rays from Chandra are orange, green, and purple, showing different X-ray energies, and the radio data from MeerKAT are gray. Image credit: NASA / CXC / UMass / Q.D. Wang / NRF / SARAO / MeerKAT.

New Map Reveals X-Ray-Emitting Threads and Plume-Like Structures near Milky Way’s Center

May 28, 2021 by News Staff

Using NASA’s Chandra X-ray Observatory and the MeerKAT radio telescope in South Africa, an astronomer from the University of Massachusetts, Amherst has...

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