Tag Archive for 'Galaxy'

This Hubble image shows the central region of IC 2051, a spiral galaxy located 90 million light-years away in the constellation Mensa. The image is made up of observations from Hubble’s Wide Field Camera 3 (WFC3) in the optical and infrared parts of the spectrum. Three 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 / P. Erwin et al.

Hubble Snaps Close-Up of Spiral Galaxy IC 2051

Dec 16, 2019 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured an outstanding image of the central part of the compact spiral galaxy IC 2051. This Hubble image shows...

X-ray image of the gravitational lens system SDSS J1004+4112 taken by NASA’s Chandra X-ray Observatory; the central red extended emission is from the hot gas in the foreground lens galaxy cluster and the four blue point sources are the lensed images of the background quasar. Image credit: University of Oklahoma.

Free-Floating Planet-Mass Objects are Common in Galaxies

Dec 13, 2019 by Enrico de Lazaro

Using a technique called quasar microlensing, a team of astronomers at the University of Oklahoma has detected populations of free-floating planet-mass...

This image, taken by the Gemini Multi-Object Spectrograph on the Frederick C. Gillett Gemini North telescope, shows the interacting galaxy pair NGC 5394-NGC 5395. Image credit: NSF’s National Optical-Infrared Astronomy Research Laboratory / Gemini Observatory / AURA.

Gemini North Telescope Captures Stunning Galaxy Collision

Dec 13, 2019 by Enrico de Lazaro

Astronomers working at the NSF-supported Gemini Observatory have captured a new photo of interacting spiral galaxies NGC 5394 and NGC 5395, collectively...

Milky Way’s center produces more high-energy gamma rays than can be explained by known sources. This image shows the Milky Way in visible light and a gamma-ray map from NASA’s Fermi Gamma-ray Space Telescope. Image credit: NASA’s Goddard Space Flight Center / A. Mellinger, Central Michigan University / T. Linden, University of Chicago.

Annihilating Dark Matter May Lurk in Milky Way’s Center

Dec 12, 2019 by News Staff

Gamma rays — the most energetic waves in the electromagnetic spectrum — are typically produced by the hottest, most extreme objects in the...

Merging Pair of Dusty Star-Forming Galaxies Spotted 13 Billion Light-Years Away

Dec 12, 2019 by News Staff

Using the Atacama Large Millimeter/submillimeter Array (ALMA), an international team of astronomers has spotted an unlensed, dusty star-forming galaxy...

Magnetic fields in the spiral galaxy Messier 77, also known as M77 and NGC 1086, are shown as streamlines over a visible light and X-ray composite image of the galaxy from the NASA/ESA Hubble Space Telescope, NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR), and the Sloan Digital Sky Survey. The magnetic fields align along the entire length of the massive spiral arms of Messier 77, implying that the gravitational forces that created the galaxy’s shape are also compressing the its magnetic field. This supports the leading theory of how the spiral arms are forced into their iconic shape known as ‘density wave theory.’ SOFIA studied the galaxy using far-infrared light (89 microns) to reveal facets of its magnetic fields that previous observations using visible and radio telescopes could not detect. Image credit: NASA / SOFIA / JPL-Caltech / Roma Tre University.

Magnetic Fields Play Important Role in Shaping Spiral Galaxies

Dec 11, 2019 by News Staff

New infrared observations from NASA’s Stratospheric Observatory for Infrared Astronomy (SOFIA) of Messier 77, a spiral galaxy located 47 million light-years...

NGC 3175 can be seen slicing across the frame in this Hubble image, with its mix of bright patches of glowing gas, dark lanes of dust, bright core, and whirling, pinwheeling arms coming together to paint a beautiful celestial scene. This image is made up of observations from Hubble’s Wide Field Camera 3 (WFC3) in the infrared and optical parts of the spectrum. Two 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 / D. Rosario et al.

Hubble Captures Detailed Image of Edge-On Spiral Galaxy NGC 3175

Dec 9, 2019 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has delivered an incredible snapshot of a nearby spiral galaxy called NGC 3175. NGC 3175 can be seen slicing across...

From a great distance, our Milky Way Galaxy would look like a thin disk of stars that orbits once every few hundred million years around its central region, where hundreds of billions of stars provide the gravitational ‘glue’ to hold it all together. But this pull of gravity is much weaker in the Galaxy’s far outer disk. There, the hydrogen atoms making up most of the Milky Way’s gas disk are no longer confined to a thin plane, instead they give the disk an S-like, or warped, appearance. Image credit: Xiaodian Chen.

Milky Way’s Thick Disk is 10 Billion Years Old, Astronomers Say

Dec 6, 2019 by News Staff

Our Milky Way Galaxy consists of two disk-like structures, known as ‘thick’ and ‘thin’ disks. The thick disk contains only about 20% of the Galaxy’s...

This composite image shows the surroundings of a supermassive black hole that is triggering star formation across the longest distance ever seen; as hot gas swirls around the black hole, it emits large amounts of X-rays that Chandra detects; the black hole is also the source of radio-wave emission from a jet of high-energy particles -- previously detected by scientists with the VLA -- that stretches about a million light-years. Image credit: NASA / CXC / INAF / R. Gilli et al / NRAO / VLA / STScI.

Supermassive Black Hole Triggers Star Formation in Multiple Galaxies

Dec 5, 2019 by News Staff

Enormous black holes usually affect their surroundings through the so-called ‘negative feedback’ — in other words, suppressing the formation...

This Hubble image shows the face-on spiral galaxy NGC 5468. 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 / W. Li et al / Judy Schmidt, www.geckzilla.com.

Hubble Space Telescope Observes NGC 5468

Dec 2, 2019 by News Staff

The NASA/ESA Hubble Space Telescope has produced a spectacularly detailed image of a spiral galaxy called NGC 5468. This Hubble image shows the face-on...

An artist’s impression of planets orbiting a supermassive black hole. Image credit: Kagoshima University.

Planets May Form and Orbit around Supermassive Black Holes

Nov 25, 2019 by Enrico de Lazaro

Protoplanetary disks around stars may not be the only site for planet formation in the Universe, according to a team of theoretical astrophysicists from...

This Hubble image shows the pair of interacting galaxies Arp 293. The image includes infrared observations from Hubble’s Wide Field Camera 3 (WFC3). Three filters were used to sample various wavelengths. Image credit: NASA / ESA / Hubble / K. Larson et al.

Hubble Witnesses Dance of Galaxies: Arp 293

Nov 25, 2019 by Natali Anderson

NASA has released a beautiful photo taken by the NASA/ESA Hubble Space Telescope of the peculiar pair of interacting galaxies called Arp 293. This Hubble...

This image of the Phoenix Cluster combines X-ray, radio and optical data; side panels show the individual images making up the composite. Image credit: NASA / CXC / MIT / M. McDonald et al / NRAO / AUI / NSF / STScI.

Enormous Black Hole Boosts Star Formation in Phoenix Galaxy Cluster

Nov 22, 2019 by News Staff

Supermassive black holes in the center of galaxy clusters usually suppress star formation, but the one in the Phoenix Cluster, a group of about 1,000 galaxies...

NGC 6240 harbors three supermassive black holes at its core: the northern black hole (N) is active and was known before; the zoomed-in new high-spatial resolution image shows that the southern component consists of two supermassive black holes (S1 and S2); the green color indicates the distribution of gas ionized by radiation surrounding the black holes; the red lines show the contours of the starlight from the galaxy and the length of the white bar corresponds to 1,000 light years. Image credit: P. Weilbacher, Leibniz Institute for Astrophysics Potsdam / NASA / ESA / Hubble Heritage / STScI / AURA / Hubble Collaboration / A. Evans, University of Virginia, Charlottesville / NRAO / Stony Brook University.

Astronomers Find Three Supermassive Black Holes in NGC 6240

Nov 22, 2019 by News Staff

NGC 6240, a well-studied nearby galaxy system in the process of merging, contains three supermassive black holes at its core, two of which are active and...

Astronomers Observe Host Galaxy of Extremely Bright and Long Gamma-Ray Burst

Nov 21, 2019 by News Staff

Astronomers have investigated the nature of a very bright and long-duration gamma-ray burst, GRB 190114C, by studying its environment. Hubble’s observations...

This new image from the NASA/ESA Hubble Space Telescope shows the spiral galaxy NGC 3749. The image is made up of observations from Hubble’s Wide Field Camera 3 (WFC3) in the infrared and optical parts of the spectrum. Two 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 / D. Rosario et al.

Hubble Snaps Stunning Image of Spiral Galaxy NGC 3749

Nov 18, 2019 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured an amazing new photo of a galaxy called NGC 3749. This new image from the NASA/ESA Hubble Space Telescope...

This is a simulation showing a section of the Universe at its broadest scale; a web of cosmic filaments forms a lattice of matter, enclosing vast voids. Image credit: Greg Poole / Tiamat Simulation.

Study: Direction in Which Galaxies Spin Depends on Their Mass

Nov 15, 2019 by News Staff

Astronomers have measured the rotation of 1,418 galaxies and found that small ones are likely to spin on a different axis to large ones. The rotation was...

This image snapped by the NASA/ESA Hubble Space Telescope reveals a detailed view of the central part of the unbarred spiral galaxy NGC 772. The image is made up of observations from Hubble’s Wide Field Camera 3 (WFC3) in the infrared and optical parts of the spectrum. Three 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. Seth et al.

Hubble Observes Hidden Depths of NGC 772

Nov 11, 2019 by News Staff

The NASA/ESA Hubble Space Telescope has captured a striking new photo of a spiral galaxy called NGC 772. This image snapped by the NASA/ESA Hubble Space...

This Hubble image shows a massive galaxy cluster, about 4.6 billion light years away. Along its borders 12 images within the four arcs are visible; these are copies of the same galaxy called PSZ1 G311.65-18.48, which is almost 11 billion light-years away. Three of these arcs are visible in the top right of the image, while one counterarc is visible in the lower left -- partially obscured by a bright foreground star within our Milky Way Galaxy. Image credit: NASA / ESA / Hubble / Rivera-Thorsen et al.

Hubble Sees Twelve Images of Same Galaxy Split by Gravitational Lens

Nov 8, 2019 by News Staff

An effect called strong gravitational lensing has allowed the NASA/ESA Hubble Space Telescope to see the same remote galaxy twelve times. Called PSZ1 G311.65-18.48,...

A volume rendering of the ionized gas wind in the Makani galaxy. Two of the dimensions are spatial, and the third is velocity. The colors trace the velocity axis, shown by the arrow at center. The approximate locations of the two proposed outflow episodes are labeled. Image credit: Jim Geach, David Tree & Peter Richardson, University of Hertfordshire.

Astronomers Observe Giant Outflow of Gas Extending Far Beyond Compact Galaxy

Oct 31, 2019 by News Staff

The direct evidence of the role of galactic winds — ejections of gas from galaxies — in creating the so-called circumgalactic medium has been...

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