Tag Archive for 'Galaxy'

An artist’s impression of FRB 181112 traveling through the halo of a massive galaxy 4 billion light-years from Earth. Image credit: M. Kornmesser / ESO.

Fast Radio Burst Exposes Halo of Massive Galaxy

Sep 30, 2019 by News Staff

In November 2018, CSIRO’s Australian Square Kilometre Array Pathfinder (ASKAP) detected a new fast radio burst, an enigmatic blast of cosmic radio waves...

This Hubble image shows NGC 4194, an ongoing cosmic collision between two galaxies. This picture was snapped by Hubble’s Wide Field Camera 3 (WFC3). The image was made through four filters. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / A. Adamo.

Medusa Merger: Hubble Captures Stunning Galaxy Collision

Sep 30, 2019 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured an amazing new photo of two merging galaxies collectively called NGC 4194. This Hubble image shows NGC...

Pfeifle et al provide the strongest evidence yet for a system of three supermassive black holes. Image credit: NASA / CXC / George Mason University / R. Pfeifle et al / SDSS / NASA / STScI.

Astronomers Find Triple Supermassive Black Hole

Sep 29, 2019 by News Staff

Using data from several space- and ground-based telescopes, astronomers have discovered a system of three supermassive black holes within SDSS J084905.51+111447.2,...

This Hubble image shows a galaxy called Messier 86. The image is made up of observations from Hubble’s Advanced Camera for Surveys (ACS) in the optical part 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 / P. Cote et al.

Hubble Space Telescope Looks at Messier 86

Sep 23, 2019 by News Staff

The NASA/ESA Hubble Space Telescope has taken a picture of the galaxy Messier 86, which is found in the constellation of Virgo. This Hubble image shows...

This Hubble image reveals a detailed view of part of the dwarf elliptical galaxy Messier 110. The color image was made from separate exposures taken in the visible and near-infrared regions of the spectrum with Hubble’s Wide Field Planetary Camera 2 (WFPC2). It is based on data obtained through two filters. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / L. Ferrarese et al.

NASA Releases New Image of Dwarf Elliptical Galaxy Messier 110

Sep 16, 2019 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured this vivid image of Messier 110, one of the satellite galaxies of the famous Andromeda Galaxy. This Hubble...

This remarkable image from ESO’s VISTA telescope shows the Large Magellanic Cloud, one of our nearest galactic neighbors. Image credit: ESO / VMC Survey.

Astronomers Chart 3D Structure of Magellanic Clouds

Sep 13, 2019 by Enrico de Lazaro

Using data from the VISTA Magellanic Clouds (VMC) Survey, astronomers have explored the morphology of the Large and Small Magellanic Clouds, which are...

Radio image of the center of the Milky Way with a portion of the MeerKAT telescope array in the foreground. Image credit: University of Oxford / SARAO.

Astronomers Detect Giant Radio Bubbles in Milky Way’s Center

Sep 12, 2019 by News Staff

Astronomers using the MeerKAT telescope at the South African Radio Astronomy Observatory have spotted a pair of enormous radio-emitting bubbles in the...

PG 1610+062. Image credit: Centre de Données astronomiques de Strasbourg / SIMBAD / SDSS.

One of Milky Way’s Most Extreme Runaway Stars Discovered

Sep 11, 2019 by News Staff

A runaway star called PG 1610+062 was probably ejected from the Milky Way’s Carina-Sagittarius spiral arm at a velocity of 341.8 mi/s (550 km/s) with...

This Hubble image shows the dwarf galaxy UGC 695. The picture 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 / D. Calzetti.

Hubble Observes Isolated Dwarf Galaxy UGC 695

Sep 9, 2019 by News Staff

The NASA/ESA Hubble Space Telescope has taken a beautiful picture of a galaxy called UGC 695. This Hubble image shows the dwarf galaxy UGC 695. The picture...

This visible-light image of NGC 6946 comes from the Digital Sky Survey, and is overlaid with data from NASA’s NuSTAR observatory (in blue and green). ULX-4 is the green blob near the bottom of the galaxy. Image credit: NASA / JPL-Caltech.

NuSTAR Spots Mysterious Source of Ultraluminous X-Rays in Nearby Spiral Galaxy

Sep 5, 2019 by News Staff

Astronomers using NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) have found a remarkable source of X-rays in NGC 6946, a spiral galaxy located...

This infrared image taken by NASA’s Spitzer Space Telescope shows a spiral galaxy called Messier 81. Image credit: NASA / JPL-Caltech.

Spitzer Snaps Beautiful Image of Messier 81

Sep 5, 2019 by News Staff

NASA has released a stunning infrared image snapped by NASA’s Spitzer Space Telescope of the spiral galaxy Messier 81. This infrared image taken by NASA’s...

This image, which combines data from ALMA, Hubble and MUSE, shows the barred spiral galaxy Messier 95. Image credit: ESO / R. Leaman / D. Gadotti / K. Sandstrom / D. Calzetti.

Astronomers Observe ‘Stellar Feedback’ in Spiral Galaxy Messier 95

Sep 3, 2019 by Enrico de Lazaro

Astronomers have used the Atacama Large Millimeter/submillimeter Array (ALMA), the NASA/ESA Hubble Space Telescope and the Multi Unit Spectroscopic Explorer...

Gaia’s all-sky view of our Milky Way Galaxy and neighboring galaxies, based on measurements of nearly 1.7 billion stars. Brighter regions indicate denser concentrations of especially bright stars, while darker regions correspond to patches of the sky where fewer bright stars are observed. The color representation is obtained by combining the total amount of light with the amount of blue and red light recorded by Gaia in each patch of the sky. The bright horizontal structure that dominates the image is the Galactic plane, the flattened disc that hosts most of the stars in our home Galaxy. In the middle of the image, the Galactic center appears vivid and teeming with stars. Darker regions across the Galactic plane correspond to foreground clouds of interstellar gas and dust, which absorb the light of stars located further away, behind the clouds. Many of these conceal stellar nurseries where new generations of stars are being born. Sprinkled across the image are also many globular and open clusters -- groupings of stars held together by their mutual gravity, as well as entire galaxies beyond our own. The two bright objects in the lower right of the image are the Large and Small Magellanic Clouds, two dwarf galaxies orbiting the Milky Way. In small areas of the image where no color information was available -- to the lower left of the Galactic center, to the upper left of the Small Magellanic Cloud, and in the top portion of the map -- an equivalent grayscale value was assigned. Image credit: ESA / Gaia / DPAC.

ESA’s Gaia Space Telescope Traces Milky Way’s Stellar Families

Sep 2, 2019 by News Staff

Astronomers using data from ESA’s Gaia spacecraft have identified a number of clusters, associations and co-moving groups of stars within about 3,300...

This Hubble image shows the dwarf galaxy UGC 685, which lies in the constellation of Pisces, 15.7 million light-years away. The color image was made from separate exposures taken in the visible and near-infrared regions of the spectrum with Hubble’s Wide Field Planetary Camera 2 (WFPC2) and Advanced Camera for Surveys (ACS). 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 / LEGUS Team / B. Tully / D. Calzetti / Judy Schmidt, www.geckzilla.com.

Hubble Images Dwarf Galaxy UGC 685

Sep 2, 2019 by News Staff

The NASA/ESA Hubble Space Telescope has captured a striking new photo of a dwarf irregular galaxy named UGC 685. This Hubble image shows the dwarf galaxy...

GRB 160821B occurred in the outskirts of a spiral galaxy about two billion light-years away, at a projected offset of 52,185 light-years from the galaxy’s center. Image credit: Troja et al, doi: 10.1093/mnras/stz2255.

Astronomers Detect New Kilonova Explosion

Aug 28, 2019 by News Staff

Astronomers have re-examined data from GRB 160821B, a short duration gamma-ray burst spotted on August 21, 2016, and found evidence for a kilonova, an...

The world’s first neutrino observation in a hydrogen bubble chamber. It was found November 13, 1970, on this photograph from the Zero Gradient Synchrotron’s 12-foot bubble chamber. The invisible neutrino strikes a proton where three particle tracks originate (lower right). The neutrino turns into a mu-meson, the long center track (extending up and left). The short track is the proton. The third track (extending down and left) is a pi-meson created by the collision. Image credit: Argonne National Laboratory.

Physicists Determine Maximum Possible Mass for Lightest Neutrino

Aug 23, 2019 by News Staff

Using data from the large scale structure of galaxies, the Cosmic Microwave Background (CMB), Type Ia supernovae, and Big Bang nucleosynthesis, a team...

An artist’s concept of the SN 2016iet pair-instability supernova. Image credit: Gemini Observatory / NSF / AURA / Joy Pollard.

New Type of Supernova Totally Annihilates Its Parent Star

Aug 22, 2019 by News Staff

Astronomers have announced the discovery of the most massive star ever known to be destroyed by a supernova explosion. Dubbed SN 2016iet, the explosive...

Massive and dusty star-forming galaxies are visible to ALMA (right), but invisible to Hubble (left). Image credit: Wang et al.

Astronomers Spot Massive Star-Forming Galaxies in Early Universe

Aug 16, 2019 by News Staff

Using data from multiple space- and ground-based telescopes, an international team of astronomers has discovered 39 massive star-forming galaxies at a...

This Spitzer image shows the edge-on lenticular galaxy NGC 5866. The colors represent three infrared wavelengths captured by Spitzer’s Infrared Array Camera. Blue light corresponds to Spitzer’s observations at a wavelength of 3.6 microns, produced mainly by stars; green corresponds to 4.5 microns; and red corresponds to 8 microns. In this image, the blue haze is produced by stars that make up most of the mass of NGC 5866. Image credit: NASA / JPL-Caltech.

Spitzer Spots Perfect Edge-On Galaxy: NGC 5866

Aug 13, 2019 by News Staff

NASA has released a stunning infrared image taken by the agency’s Spitzer Space Telescope of a lenticular galaxy called NGC 5866. This Spitzer image...

ALMA made the most precise measurements of cold gas swirling around a supermassive black hole -- the cosmic behemoth at the center of the giant elliptical galaxy NGC 3258. The multi-color ellipse reflects the motion of the gas orbiting the black hole, with blue indicating motion toward us and red motion away from us. The inset box represents how the orbital velocity changes with distance from the black hole. The material was found to rotate faster the closer in the astronomers observed to the black hole, enabling them to accurately calculate its mass: a whopping 2.25 billion times the mass of our Sun. Image credit: ALMA / ESO / NAOJ / NRAO / B. Boizelle / AUI / NSF / S. Dagnello / Hubble Space Telescope / NASA / ESA / Carnegie-Irvine Galaxy Survey.

ALMA Determines Mass of Supermassive Black Hole in NGC 3258

Aug 8, 2019 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have observed the dynamical sphere of influence of a supermassive black hole...

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