Tag Archive for 'Galaxy'

This Hubble image shows Arp 263, an irregular galaxy located 27.1 million light-years away in the constellation of Leo. The color image of Arp 263 was made from separate exposures taken in the visible and near-infrared regions of the spectrum with Hubble’s Advanced Camera for Surveys and Wide Field Camera 3. 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 / J. Dalcanton / A. Filippenko.

Hubble Space Telescope Spots Triangle-Shaped Galaxy

Jul 17, 2023 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have produced a spectacularly detailed image of the irregular galaxy Arp 263. This Hubble image shows...

An artist’s impression of a supermassive dark star. Image credit: Sci.News.

Webb May Have Spotted Supermassive Dark Stars

Jul 15, 2023 by Enrico de Lazaro

The first generation of stars in the Universe is yet to be observed. There are two leading theories for those objects: hydrogen burning Population III...

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.

Our Universe is 26.7 Billion Years Old, Astrophysicist Claims

Jul 11, 2023 by News Staff

The Universe could be twice as old as current estimates, according to new research from the University of Ottawa that challenges the dominant cosmological...

This Hubble image shows eMACS J1353.7+4329, a lensing galaxy cluster some 8 billion light-years away in the constellation of Canes Venatici. Image credit: NASA / ESA / Hubble / H. Ebeling.

Hubble Space Telescope Observes Exceptional Galaxy Cluster

Jul 10, 2023 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured a remarkable image of the strongly lensing galaxy cluster eMACS J1353.7+4329. This...

CEERS 1019’s black hole existed just over 570 million years after the Big Bang and weighs only 9 million solar masses. Image credit: NASA / ESA / CSA / Leah Hustak, STScI.

Astronomers Detect Farthest Active Supermassive Black Hole Yet

Jul 6, 2023 by News Staff

Astronomers using the NASA/ESA / CSA James Webb Space Telescope have discovered an active supermassive black hole in CEERS 1019, a galaxy that existed...

Hubble image of NGC 6946, the host galaxy of both SNe 2004et and 2017eaw. Bottom left-hand panel: composite image of SN 2004et taken with Webb/MIRI. Bottom right-hand panel: composite image of SN 2017eaw taken with Webb/MIRI. Image credit: NASA / ESA / CSA / Ori Fox, STScI / Melissa Shahbandeh, STScI / Alyssa Pagan, STScI.

Webb Observes Dust Reservoirs in Two Type IIP Supernovae

Jul 6, 2023 by News Staff

The dust reservoirs observed in two type IIP supernovae, SN 2004et and SN 2017eaw, both in the medium-sized, face-on spiral galaxy NGC 6946 about 22 million...

This deep galaxy field from Webb’s Near-Infrared Camera (NIRCam) shows an arrangement of 10 distant galaxies marked by eight white circles in a diagonal, thread-like line. Two of the circles contain more than one galaxy. This 3 million light-year-long filament is anchored by a very distant and luminous quasar. Ccalled J0305-3150, this quasar appears in the middle of the cluster of three circles on the right side of the image. Image credit: NASA / ESA / CSA / Feige Wang, University of Arizona.

Webb Detects 3-Million-Light-Year-Long Filament of Galaxies in Early Universe

Jul 5, 2023 by News Staff

Galaxies are strung along filaments in the vast cosmic web, which also contains enormous voids. Using the NASA/ESA/CSA James Webb Space Telescope, astronomers...

This Webb image shows NGC 3256, a spiral galaxy located 131 million light-years away in the constellation of Vela. The galaxy’s core is radiating very brightly. Streaks of dust glow intensely red, in the center and across most of the galaxy. This gas is surrounded by a dark gray halo made of the galaxy’s stars. The halo stretches out into a tidal tail at the upper-left, and another at the bottom. Image credit: NASA / ESA / CSA / Webb / L. Armus / A. Evans.

Webb Snaps Stunning Image of NGC 3256

Jul 4, 2023 by Enrico de Lazaro

NASA has released a stunning image snapped by the James Webb Space Telescope of the Milky Way-sized spiral galaxy NGC 3256. This Webb image shows NGC 3256,...

Universe was Five Times Slower Soon after Big Bang, Astrophysicists Say

Jul 3, 2023 by News Staff

A fundamental consequence of the relativistic picture of expanding space is cosmological time dilation, where events in the distant Universe appear to...

This Hubble image shows UGC 11860, a spiral galaxy located some 184 million light-years away in the constellation of Pegasus. The color image is made up of observations from Hubble’s WFC3 camera in the ultraviolet, near-infrared, and optical parts of the spectrum. It is based on data obtained through three filters. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / A. Filippenko / J.D. Lyman.

Hubble Space Telescope Looks at Supernova-Hosting Spiral Galaxy

Jul 3, 2023 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has delivered an unrivalled snapshot of the spiral galaxy UGC 11860. This Hubble image shows UGC 11860, a spiral galaxy...

ESA’s Euclid spacecraft will orbit the second Lagrange point (L2), 1.5 million km from Earth in the opposite direction to the Sun. L2 is an equilibrium point of the Sun-Earth system that follows Earth around the Sun. In its orbit at L2, Euclid’s sunshield can always block the light from the Sun, Earth and Moon while pointing its telescope towards deep space, ensuring a high level of stability for its instruments. At L2, Euclid joins ESA’s Gaia mission and the ESA/NASA/CSA James Webb Space Telescope, which are also orbiting around this equilibrium point, each following well separated trajectories. Image credit: ESA.

ESA’s Euclid Mission Launches to Explore Dark Matter and Energy

Jul 3, 2023 by News Staff

The Euclid spacecraft, built and operated by ESA, with contributions from NASA, lifted off from Cape Canaveral Space Force Station in Florida at 11:12...

An artist’s composition of the Milky Way seen through a neutrino lens (blue). Image credit: IceCube / NSF / Lily Le / Shawn Johnson / ESO / S. Brunier.

IceCube Detects High-Energy Neutrino Emission from Milky Way’s Galactic Plane

Jun 30, 2023 by News Staff

Observations of high-energy astrophysical neutrinos have shown that they mostly originate from extragalactic sources such as active galaxies. However,...

An artist’s interpretation of an array of pulsars being affected by gravitational ripples produced by a supermassive black hole binary in a distant galaxy. Image credit: Aurore Simonnet / NANOGrav Collaboration.

Astrophysicists Detect Low-Frequency Gravitational Waves

Jun 29, 2023 by News Staff

Astrophysicists from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) Collaboration have found evidence for gravitational waves...

This Hubble image shows ESO 174-1, a highly irregular galaxy some 11 million light-years away in the constellation of Centaurus. Image credit: NASA / ESA / Hubble / R. Tully.

Hubble Spots Highly Irregular Galaxy in Centaurus

Jun 26, 2023 by Enrico de Lazaro

An irregular galaxy called ESO 174-1 resembles a lonely, hazy cloud against a backdrop of bright stars. This Hubble image shows ESO 174-1, a highly irregular...

GRB 191019A came from the collision of stars or stellar remnants in the jam-packed environment surrounding a supermassive black hole at the core of an ancient galaxy. Image credit: International Gemini Observatory / NOIRLab / NSF / AURA / M. Garlick / M. Zamani.

Long-Duration Gamma-Ray Burst Traced to Nucleus of Ancient Galaxy

Jun 22, 2023 by News Staff

Unlike most gamma-ray bursts, which are caused by exploding massive stars or the chance mergers of neutron stars, a long gamma-ray burst event dubbed GRB...

IXPE and Chandra images have been combined to show X-ray data of the area around Sagittarius A. The lower panel combines IXPE data, in orange, with Chandra data in blue. The upper panel depicts a much wider field-of-view of the center of the Milky Way. The thin white lines layered onto the top panel frame the highlighted area, and indicate that the perspective in the bottom panel has been rotated approximately 45 degrees to the right. The combination of IXPE and Chandra data helped the astronomers determine that the X-ray light identified in the molecular clouds originated from Sagittarius A* during an outburst approximately 200 years ago. Image credit: NASA’s Marshall Space Flight Center / Marin et al. / CXC / SAO / L. Frattare / J.Major / K.Arcand.

IXPE Detects 200-Year-Old Flare from Milky Way’s Supermassive Black Hole

Jun 22, 2023 by News Staff

The center of the Milky Way Galaxy hosts Sagittarius A*, a supermassive black hole with a mass of about 4 million solar masses that is very quiescent....

In shaping the Universe, gravity builds a vast cobweb-like structure of filaments tying galaxies and clusters of galaxies together along invisible bridges hundreds of millions of light-years long. This is known as the cosmic web. Image credit: Springel et al. / Max Planck Institute for Astrophysics.

New Link Found between Dark Matter and Universe’s Clumpiness

Jun 14, 2023 by News Staff

New research from the University of Toronto suggests that the so-called clumpiness problem, which centers on the unexpectedly even distribution of matter...

Webb captured extraordinarily detailed images and spectra of galaxies that existed when the Universe was only 900 million years old. Image credit: NASA / ESA / CSA / Simon Lilly, ETH Zurich / Daichi Kashino, Nagoya University / Jorryt Matthee, ETH Zurich / Christina Eilers, MIT / Rongmon Bordoloi, NCSU / Ruari Mackenzie, ETH Zurich / Alyssa Pagan, STScI / Ruari Mackenzie, ETH Zurich.

Star-Forming Galaxies Reionized Early Universe, Astronomers Say

Jun 12, 2023 by News Staff

Only a few hundred million years after the Big Bang, the infant Universe was brimming with opaque hydrogen gas that trapped light at some wavelengths from...

This Hubble image shows NGC 7292, an irregular galaxy some 44 million light-years away in the constellation of Pegasus. The color image was made from separate exposures taken in the visible and near-infrared regions of the spectrum Hubble’s Advanced Camera for Surveys (ACS). 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 / C. Kilpatrick.

Hubble Space Telescope Inspects NGC 7292

Jun 12, 2023 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has produced this beautiful image of the remarkable low surface brightness galaxy NGC 7292. This Hubble image shows...

SN 2023ixf (lower left) exploded in one of the spiral arms of Messier 101. Image credit: International Gemini Observatory / NOIRLab / NSF / AURA / J. Miller, Gemini Observatory & NSF’s NOIRLab / M. Rodriguez, Gemini Observatory & NSF’s NOIRLab / M. Zamani, NSF’s NOIRLab / T.A. Rector, University of Alaska Anchorage & NSF’s NOIRLab / D. de Martin, NSF’s NOIRLab.

Gemini North Telescope Observes Supernova Explosion in Messier 101

Jun 9, 2023 by Enrico de Lazaro

A supernova dubbed SN 2023ixf was discovered on May 19, 2023 by the Japanese astronomer Koichi Itagaki. SN 2023ixf (lower left) exploded in one of the...

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