Even galaxies recycle
A quasar ejected the remains of stars, but another galaxy sucked them back in. Enlarge / A quasar ejects a jet of material into intergalactic space. (credit: J. A. Biretta et al., Hubble Heritage Team) On Earth, recyclin.....»»
See the majestic Southern Pinwheel Galaxy in this Dark Energy Camera image
The striking Southern Pinwheel Galaxy is one of the brightest barred spiral galaxies in the sky......»»
M87"s powerful jet unleashes rare gamma-ray outburst
Also known as Virgo A or NGC 4486, M87 is the brightest object in the Virgo cluster of galaxies, the largest gravitationally bound type of structure in the universe. It came to fame in April 2019 after scientists from EHT released the first image of.....»»
Image: Interacting galaxies NGC 5257 and NGC 5258
NGC 5257 and NGC 5258 are gravitationally interacting galaxies of similar size and mass in the constellation Virgo......»»
James Webb spots ancient Spiderweb cluster that’s 10 billion years old
An image from the James Webb Space Telescope shows a group of galaxies called the Spiderweb protocluster, and it dates to when the universe was young......»»
Astronomers close to solving mystery of how universe"s giant galaxies formed
Astronomers say they are close to solving an intergalactic mystery about the creation of the universe's biggest galaxies which has puzzled experts for decades......»»
Webb finds new galaxies in Spiderweb protocluster field
Using the NASA/ESA/CSA James Webb Space Telescope, an international team of astronomers have found new galaxies in the Spiderweb protocluster. Their characteristics shed light on the growth of galaxies in these large cosmic cities, with the finding t.....»»
An improved quantification of the intergalactic medium and cosmic filaments
Much of the mass in the universe lies not in stars or galaxies, but in the space between them, known as the intergalactic medium. It is warm and even hot, and is called the "warm-hot intergalactic medium," or WHIM. It holds about 50% of the normal ma.....»»
Investigating how the biggest galaxies in the cosmos grew so quickly before dying
Astronomers are closer than ever to working out how the biggest galaxies in the cosmos grew so quickly before dying......»»
Astronomers discover a rare group of dwarf galaxies
Astronomers from the Yonsei University in Seoul, South Korea and elsewhere have discovered a rare isolated group of five star-forming dwarf galaxies in the local universe. The finding was reported in a research paper published November 19 in The Astr.....»»
The dark energy pushing our universe apart may not be what it seems, scientists say
Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they thought......»»
2 million mph galaxy smash-up seen in unprecedented detail
A massive collision of galaxies sparked by one traveling at a scarcely-believable 2 million mph (3.2 million km/h) has been seen in unprecedented detail by one of Earth's most powerful telescopes......»»
Introducing "UFO" galaxies—the Milky Way"s dustier cousins
In a new study, a team of astrophysicists led by CU Boulder has set out to unravel the mysteries of UFOs—not the alien spacecraft, but a class of unusually large and red galaxies that researchers have nicknamed Ultra-red Flattened Objects, or UFOs.....»»
The Milky Way represents an outlier among similar galaxies, universe survey data shows
For decades, scientists have used the Milky Way as a model for understanding how galaxies form. But three new studies raise questions about whether the Milky Way is truly representative of other galaxies in the universe......»»
New DESI data shed light on gravity"s pull in the universe
Gravity has shaped our cosmos. Its attractive influence turned tiny differences in the amount of matter present in the early universe into the sprawling strands of galaxies we see today. A new study using data from the Dark Energy Spectroscopic Instr.....»»
New giant radio galaxy discovered with MeerKAT
An international team of astronomers has employed the MeerKAT radio telescope to investigate giant radio galaxies in the field of the Cosmological Evolution Survey (COSMOS). They found a new giant radio galaxy that had not been reported before. The f.....»»
Stunning images of nearby galaxies from the VLT Survey Telescope
A telescope in Chile has taken five beautiful images of nearby galaxies......»»
Epic Gravity Lens Lines Up Seven-Galaxy View
A galaxy cluster bends light from seven background galaxies around it, letting astronomers peer into space and time.....»»
Astronomers defy the zone of avoidance to find hundreds of new galaxies
There is a region of the sky where astronomers fear to look. Filled with dark clouds of dust, it hides an unseen mass. A mass so large it is pulling the Milky Way and other galaxies toward it......»»
New research challenges dark matter theory in galaxy formation
The standard model for how galaxies formed in the early universe predicted that the James Webb Space Telescope (JWST) would see dim signals from small, primitive galaxies. But data are not confirming the popular hypothesis that invisible dark matter.....»»
Star"s disappearance in Andromeda marks the birth of a black hole
Massive stars about eight times more massive than the sun explode as supernovae at the end of their lives. The explosions, which leave behind a black hole or a neutron star, are so energetic they can outshine their host galaxies for months. However,.....»»