Artist's illustration and X-ray image of "red nugget" galaxy Mrk 1216. Credits: X-ray: NASA/CXC/MTA-Eötvös University/N. Werner et al., Illustration: NASA/CXC/M. Weiss

Red Nuggets’ Are Galactic Gold for Astronomers

Red Nuggets’ Are Galactic Gold for Astronomers About a decade ago, astronomers discovered a population of small, but massive galaxies called “red nuggets.” A new…

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When galaxies align. NASA

How we proved Einstein right on galactic scales – and what it means for dark energy and dark matter

How we proved Einstein right on galactic scales – and what it means for dark energy and dark matter When galaxies align. NASA Thomas Collett,…

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An image of the galaxy Arp299B, which is undergoing a merging process with Arp299A (the galaxy to the left), captured by NASA's Hubble space telescope. The inset features an artist's illustration of a tidal disruption event (TDE), which occurs when a star passes fatally close to a supermassive black hole. A TDE was recently observed near the center of Arp299B. Credits: Sophia Dagnello, NRAO/AUI/NSF; NASA, STScI

Astronomers See Distant Eruption as Black Hole Destroys Star

Astronomers See Distant Eruption as Black Hole Destroys Star For the first time, astronomers have directly imaged the formation and expansion of a fast-moving jet…

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A ripple of bright blue threads through this galaxy like a misshapen lake system. The foreground of this image is littered with nearby stars with their gleaming diffraction spikes. A keen eye can also spot a few other galaxies that, while masquerading as stars at first glance, reveal their true nature on closer inspection. The central galaxy streaked with colour, IC 4870, was discovered by DeLisle Stewart in 1900 and is located approximately 28 million light-years away. It contains an active galactic nucleus, or AGN: an extremely luminous central region so alight with radiation that it can outshine the rest of the galaxy put together. Credit: ESA/Hubble & NASA

Hubble Images a Galaxy with Threads of Blue

Hubble Images a Galaxy with Threads of Blue A ripple of bright blue gas threads through this galaxy like a misshapen lake system. The foreground…

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This artist’s impression shows a dusty galaxy in the distant Universe that is forming stars at a rate much higher than in our Milky Way. New ALMA observations have allowed scientists to lift the veil of dust and see what was previously inaccessible — that such starburst  galaxies have an excess of massive stars as compared to more peaceful galaxies. Credit: ESO/M. Kornmesser

ALMA and VLT Find Too Many Massive Stars in Starburst Galaxies, Near and Far

ALMA and VLT Find Too Many Massive Stars in Starburst Galaxies, Near and Far Astronomers using ALMA and the VLT have discovered that both starburst…

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How unique is our universe? Jaime Salcido/Durham University, Author provided

We discovered that life may be billions of times more common in the multiverse

We discovered that life may be billions of times more common in the multiverse How unique is our universe? Jaime Salcido/Durham University, Author provided Richard…

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This image, taken with the Wide Field Camera 3 (WFC3) and the Advanced Camera for Surveys (ACS), both installed on the NASA/ESA Hubble Space Telescope, shows the peculiar galaxy NGC 3256. The galaxy is about 100 million light-years from Earth and is the result of a past galactic merger, which created its distorted appearance. As such, NGC 3256 provides an ideal target to investigate starbursts that have been triggered by galaxy mergers. Another image of NGC 3256 was already released in 2008, as part of a collection of interacting galaxies, created for Hubble’s 18th birthday. Credit: ESA/Hubble, NASA

Cosmic collision lights up the darkness

Cosmic collision lights up the darkness Though it resembles a peaceful rose swirling in the darkness of the cosmos, NGC 3256 is actually the site…

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Glowing brightly about 160 000 light-years away, the Tarantula Nebula is the most spectacular feature of the Large Magellanic Cloud, a satellite galaxy to our Milky Way. This image from VLT Survey Telescope at ESO’s Paranal Observatory in Chile shows the region and its rich surroundings in great detail. It reveals a cosmic landscape of star clusters, glowing gas clouds and the scattered remains of supernova explosions. Credit: ESO

A Crowded Neighbourhood

A Crowded Neighbourhood Glowing brightly about 160 000 light-years away, the Tarantula Nebula is the most spectacular feature of the Large Magellanic Cloud, a satellite…

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A composite image of the supernova 1E0102.2-7219 contains X-rays from Chandra (blue and purple), visible light data from VLT’s MUSE instrument (bright red), and additional data from Hubble (dark red and green). A neutron star, the ultra dense core of a massive star that collapses and undergoes a supernova explosion, is found at its center. Credits: X-ray (NASA/CXC/ESO/F.Vogt et al); Optical (ESO/VLT/MUSE & NASA/STScI)

Astronomers Spot a Distant and Lonely Neutron Star

Astronomers Spot a Distant and Lonely Neutron Star Astronomers have discovered a special kind of neutron star for the first time outside of the Milky…

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About a century ago, we didn’t even know that galaxies existed. Mai Lam/The Conversation NY-BD-CC, CC BY-SA

Curious Kids: will the universe expand forever, or contract in a big crunch?

Curious Kids: will the universe expand forever, or contract in a big crunch? About a century ago, we didn’t even know that galaxies existed. Mai…

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At first glance, this image is dominated by the vibrant glow of the swirling spiral to the lower left of the frame. However, this galaxy is far from the most interesting spectacle here — behind it sits a galaxy cluster. Galaxies are not randomly distributed in space; they swarm together, gathered up by the unyielding hand of gravity, to form groups and clusters. The Milky Way is a member of the Local Group, which is part of the Virgo Cluster, which in turn is part of the 100 000-galaxy-strong Laniakea Supercluster. The galaxy cluster seen in this image is known as SDSS J0333+0651. Credit: ESA/Hubble & NASA

Hubble’s Galaxy Cluster Cornucopia

Hubble’s Galaxy Cluster Cornucopia At first glance, this image is dominated by the vibrant glow of the swirling spiral to the lower left of the…

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Artist impression of very young galaxy in the early universe. Credit: NRAO/AUI/NSF; S. Dagnello

ALMA Finds Most-Distant Oxygen in the Universe

ALMA Finds Most-Distant Oxygen in the Universe Galaxy 13.28 billion light-years away shows surprising signs of chemical maturity Not long after the Big Bang, the…

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This image shows the galaxy NGC 6744, about 30 million light-years away. It is one of 50 galaxies observed as part of the Hubble Space Telescope’s Legacy ExtraGalactic UV Survey (LEGUS), the sharpest, most comprehensive ultraviolet-light survey of star-forming galaxies in the nearby Universe, offering an extensive resource for understanding the complexities of star formation and galaxy evolution. The image is a composite using both ultraviolet light and visible light, gathered with Hubble’s Wide Field Camera 3 and Advanced Camera for Surveys. Credit: NASA, ESA, and the LEGUS team

Hubble shows the local Universe in ultraviolet

Hubble shows the local Universe in ultraviolet Using the unparalleled sharpness and ultraviolet observational capabilities of the NASA/ESA Hubble Space Telescope, an international team of…

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Resembling a wizard’s staff set aglow, NGC 1032 cleaves the quiet darkness of space in two in this image from the NASA/ESA Hubble Space Telescope. NGC 1032 is located about a hundred million light years away in the constellation Cetus (The Sea Monster). Although beautiful, this image perhaps does not do justice to the galaxy’s true aesthetic appeal: NGC 1032 is actually a spectacular spiral galaxy, but from Earth, the galaxy’s vast disc of gas, dust and stars is seen nearly edge-on. Credit: ESA/Hubble & NASA

Hubble Catches a Spiral Galaxy in Disguise

Hubble Catches a Spiral Galaxy in Disguise Resembling a wizard’s staff set aglow, NGC 1032 cleaves the quiet darkness of space in two in this…

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