Tag Archive for 'Galaxy'

Dark matter filaments (shown in red) bridge the space between galaxies (shown in white) on this false color map. Image credit: Seth Epps & Michael Hudson, University of Waterloo.

Astronomers Create ‘Image’ of Dark Matter Bridge that Connects Galaxies

Apr 12, 2017 by News Staff

A duo of scientists at the University of Waterloo, Canada, has been able to capture the first composite image of a dark matter bridge that connects galaxies...

This image snapped by Hubble reveals a detailed view of part of the spiral galaxy NGC 4536. Image credit: NASA / ESA / Hubble.

Hubble Takes Close Look at NGC 4536

Apr 10, 2017 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has taken the most detailed image so far of a spectacular part of the spiral galaxy NGC 4536. This image snapped by...

This is an artist impression of a progenitor of Milky Way-like galaxies in the early Universe with a background quasar shining through a ‘super halo’ of hydrogen gas surrounding the galaxy. New ALMA observations of two such galaxies reveal that these vast halos extend well beyond the galaxies’ dusty, star-forming disks. Image credit: A. Angelich / NRAO / AUI / NSF.

ALMA Spots Two Young Milky Way-Like Galaxies in Early Universe

Apr 3, 2017 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have observed a pair of massive, dusty galaxies seen when the Universe was only...

Swift J0042.6+4112 is brighter at high energies than the Andromeda galaxy’s entire black hole population. The inset image shows the pulsar candidate in blue, as seen in X-ray light by NASA’s NuSTAR mission. The background image of the Andromeda galaxy was taken by NASA’s Galaxy Evolution Explorer in UV light. Image credit: NASA / JPL-Caltech / GSFC / JHU.

Astronomers Solve Mystery of Andromeda’s Hard X-Rays

Mar 28, 2017 by News Staff

The Andromeda galaxy (also known as Messier 31) features a dominant source of hard X-rays, but its identity was mysterious until now. An international...

Artist’s impression of a galaxy forming stars within powerful outflows of material blasted out from supermassive black holes at its core. Image credit: ESO / M. Kornmesser.

ESO’s Very Large Telescope Spots New Type of Star Formation

Mar 27, 2017 by News Staff

New observations from ESO’s Very Large Telescope have revealed stars forming in the powerful outflows in galaxies, which are driven by central supermassive...

In this Hubble image the barred spiral galaxy NGC 4424 is seen edge on, but from above you would be able to see the arms of the galaxy wrapping around its center to give the characteristic spiral form. The smaller, flatter, bright galaxy sitting just below NGC 4424 is named LEDA 213994. Image credit: NASA / ESA / Hubble.

Hubble Observes Barred Spiral Galaxy NGC 4424

Mar 27, 2017 by Natali Anderson

The NASA/ESA Hubble Space Telescope has taken a picture of the galaxy NGC 4424, which is found in the constellation of Virgo. In this Hubble image the...

The elliptical galaxy 3C186, located about 8 billion years from Earth, is most likely the result of a merger of two galaxies. This is supported by arc-shaped tidal tails, usually produced by a gravitational tug between two colliding galaxies, identified by M. Chiaberge et al. The merger of the galaxies also led to a merger of the two supermassive black holes in their centers, and the resultant black hole was then kicked out of its parent galaxy by the gravitational waves created by the merger. The bright, star-like looking quasar can be seen in the center of the image. Its former host galaxy is the faint, extended object behind it. Image credit: NASA / ESA / M. Chiaberge, STScI.

Supermassive Black Hole Found 35,000 Light-Years from Home

Mar 24, 2017 by News Staff

Astronomers have uncovered a monster black hole that has been propelled out of the center of a distant galaxy, called 3C 186, by what could be the power...

This Hubble image captures an ongoing cosmic collision between two galaxies: NGC 3447A and NGC 3447B. Image credit: NASA / ESA / Hubble.

Hubble Space Telescope Views Two Galaxies Merging: NGC 3447

Mar 20, 2017 by News Staff

This new image from the NASA/ESA Hubble Space Telescope shows two galaxies (NGC 3447A and NGC 3447B) merging into one approximately 60 million light-years...

A present-day near-miss of two spiral galaxies NGC 5426 and NGC 5427, which may be comparable to the early flyby of the Andromeda galaxy past our own Milky Way Galaxy. Image credit: ESO.

Discovery Challenges Our Current Understanding of Gravity

Mar 16, 2017 by News Staff

Einstein’s theory of gravity may have to be rewritten, after a team of astronomers at the University of St Andrews discovered a 10-million-light-year-wide...

Schematic representation of rotating disc galaxies in the early Universe (right) and the present day (left). New VLT observations suggest that such massive star-forming disc galaxies in the early Universe were less influenced by dark matter (shown in red), as it was less concentrated. As a result the outer parts of distant galaxies rotate more slowly than comparable regions of galaxies in the local Universe. Image credit: ESO / L. Calçada.

Universe’s Early Galaxies Were Less Influenced by Dark Matter

Mar 15, 2017 by News Staff

New observations from ESO’s Very Large Telescope (VLT) indicate that massive, star-forming galaxies during the peak epoch of galaxy formation, 10 billion...

The massive black hole shown at left in this drawing is able to rapidly grow as intense radiation from a galaxy nearby shuts down star formation in its host galaxy. Image credit: John Wise, Georgia Tech.

How Universe’s First Supermassive Black Holes Were Born

Mar 13, 2017 by News Staff

An international team of astrophysicists from the United States, Ireland and Finland has come up with the formula for the formation of the first supermassive...

This image, taken with Hubble’s Wide Field Camera, shows the unbarred spiral galaxy NGC 1448. Image credit: NASA / ESA / Hubble.

Hubble Takes Close Look at NGC 1448

Mar 13, 2017 by Natali Anderson

This image snapped by the NASA/ESA Hubble Space Telescope reveals a detailed view of part of the disc of NGC 1448, one of the nearest luminous galaxies...

This artist’s impression shows what the galaxy A2744_YD4 might look like. Image credit: ESO / M. Kornmesser.

ALMA Detects Vast Amounts of Interstellar Dust, Oxygen in Very Young, Distant Galaxy

Mar 9, 2017 by News Staff

New observations using the Atacama Large Millimeter/submillimeter Array (ALMA) have demonstrated that A2744_YD4 — the youngest and most remote galaxy...

Artist impression illustrating a supermassive black hole with X-ray emission emanating from its inner region (pink) and ultra-fast winds streaming from the surrounding disk (purple). Image credit: ESA.

XMM-Newton, NuSTAR Telescopes Measure Temperature Swings of Black Hole Winds

Mar 2, 2017 by News Staff

For the first time, researchers have measured rapidly varying temperatures in hot gas flowing from the vicinity of a black hole. Artist impression illustrating...

This VLT image shows the spiral galaxy NGC 1055. This large galaxy appears to lack the whirling arms characteristic of a spiral, as it is seen edge-on; however, it displays odd twists in its structure that were probably caused by an interaction with a large neighboring galaxy, Messier 77. The VLT observed NGC 1055 with the FOcal Reducer and low dispersion Spectrograph 2 (FORS2) instrument using visible-light filters. Image credit: ESO.

ESO’s Very Large Telescope Spies Spiral Galaxy Edge-On

Mar 1, 2017 by News Staff

A new image from ESO’s Very Large Telescope (VLT) gives a detailed view of NGC 1055, an edge-on spiral galaxy. This VLT image shows the spiral galaxy...

This artist’s illustration depicts what astronomers call a tidal disruption event. Image credit: NASA / CXC / M. Weiss.

Tidal Disruption Events Occur More Frequently than Thought

Feb 28, 2017 by News Staff

According to a team of astronomers at the University of Sheffield, UK, stars are ripped apart by supermassive black holes 100 times more often than previously...

This image, taken with the Wide Field Camera 3 on board the NASA/ESA Hubble Space Telescope, shows the galaxy UGC 12591, located roughly 400 million light-years away in the constellation of Pegasus. Image credit: NASA / ESA / Hubble.

Hubble Captures Image of Remarkable Galaxy UGC 12591

Feb 27, 2017 by News Staff

The NASA/ESA Hubble Space Telescope has delivered a stunning snapshot of the strange giant galaxy UGC 12591. This image, taken with the Wide Field Camera...

This VLT image shows the spiral galaxy NGC 4981. The bright star visible in the image is a foreground star. Image credit: ESO / Josh Barrington.

VLT Sees Elegant Spiral with Explosive Past

Feb 26, 2017 by News Staff

ESO’s Very Large Telescope (VLT) has produced this beautiful image of the spiral galaxy NGC 4981. This VLT image shows the spiral galaxy NGC 4981. The...

NGC 5907 X-1 is in the spiral galaxy NGC 5907, which is also known as the Knife Edge Galaxy or Splinter Galaxy. This image comprises X-ray emission data (blue/white) from ESA’s XMM-Newton space telescope and NASA’s Chandra X-ray observatory, and optical data from the Sloan Digital Sky Survey. The inset shows the X-ray pulsation of the spinning neutron star, which has a period of 1.13 sec, as determined by XMM-Newton’s European Photon Imaging Camera. Image credit: ESA / XMM-Newton / NASA / Chandra / SDSS.

XMM-Newton Spots Record-Breaking Pulsar: NGC 5907 X-1

Feb 24, 2017 by News Staff

ESA’s XMM-Newton mission has spotted a pulsar — a rapidly rotating, magnetized neutron star that sweeps regular pulses of radiation in two symmetrical...

NASA’s Fermi telescope has detected a gamma-ray excess (shown in yellow-white) at the center of the Andromeda galaxy that’s similar to a signature Fermi previously detected at the center of our own Milky Way Galaxy. Scientists think the signal could be produced by a variety of processes, including a population of pulsars or even dark matter. Image credit: NASA / DOE / Fermi LAT Collaboration / Bill Schoening / Vanessa Harvey / REU Program / NOAO / AURA / NSF.

Fermi Finds Dark Matter Clues in Andromeda Galaxy

Feb 22, 2017 by News Staff

NASA’s Fermi telescope has detected a strong gamma-ray signal coming from the core of the Andromeda galaxy (also known as Messier 31) that could indicate...

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