Tag Archive for 'Galaxy'

This image snapped by Hubble’s WFC3 camera shows the spiral galaxy NGC 5917, which lies in the constellation Libra, about 87 million light-years away. Image credit: NASA / ESA / Hubble.

Hubble Space Telescope Looks at NGC 5917

May 1, 2017 by Sergio Prostak

The NASA/ESA Hubble Space Telescope has captured this stunning image of the spiral galaxy NGC 5917. This image snapped by Hubble’s WFC3 camera shows...

Map of the cosmic microwave background; the insets show the environment of the Cold Spot. The angular diameter of the vast supervoid aligned with the Cold Spot, which exceeds 30 degrees, is marked by the white circles. Image credit: ESA Planck Collaboration / Gergö Kránicz.

When Universes Collide: Galaxy Redshift Survey Hints at Exotic Origin for Mysterious ‘Cold Spot’

Apr 26, 2017 by News Staff

According to the results of a redshift survey of nearly 7,000 galaxies, a gigantic ‘hole’ in the Universe is unlikely to explain a ‘Cold Spot’...

This image shows the irregular galaxy NGC 7250, which lies in the constellation Lacerta, about 31 million light-years away. Image credit: NASA / ESA / Hubble.

Hubble Observes Irregular Galaxy NGC 7250

Apr 24, 2017 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has produced this beautiful image of the galaxy NGC 7250. This image shows the irregular galaxy NGC 7250, which lies...

Hubble’s view on iPTF16geu. Image credit: NASA / ESA / Hubble.

Hubble Spots Multiply-Imaged, Gravitationally Lensed Type Ia Supernova

Apr 21, 2017 by News Staff

The powerful vision of the NASA/ESA Hubble Space Telescope has allowed astronomers to analyze for the first time the multiple images of a gravitationally...

This image of a pair of spiral galaxies NGC 4302 and NGC 4298 was released to celebrate the 27th anniversary of the launch of the NASA/ESA Hubble Space Telescope. Image credit: NASA / ESA / M. Mutchler, STScI.

Hubble Celebrates 27th Anniversary with Photo of Galaxy Pair NGC 4302-NGC 4298

Apr 20, 2017 by News Staff

In celebration of the 27th anniversary of the launch of the NASA/ESA Hubble Space Telescope in 1990, astronomers used the legendary telescope to take a...

Ahn et al found two ultra-compact dwarf galaxies, VUCD3 and M59cO, with supermassive black holes. The findings suggest that these dwarf galaxies are likely tiny leftovers of larger galaxies that were stripped of their outer layers after colliding into other, larger galaxies Messier 87 and Messier 59, respectively. Image credit: NASA / Space Telescope Science Institute.

Researchers Find Supermassive Black Holes in Two Ultra-Compact Dwarf Galaxies

Apr 18, 2017 by News Staff

An international team of astronomers and astrophysicists, led by University of Utah, has detected supermassive black holes in two ultra-compact dwarf galaxies:...

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...

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