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.....»»
Apple starts replacing titanium Apple Cards from original 2019 batch
Apple has begun notifying users of the first-generation titanium Apple Card rolled out in 2019 about its upcoming expiration and replacement.Apple to recycle old titanium cards as replacements are issuedThe first physical Apple Cards are nearing expi.....»»
Black hole "traffic jams" discovered in galactic centers by astronomers
An international study, led by researchers from Monash University, has revealed crucial insights into black hole dynamics within massive disks at the centers of galaxies......»»
Star bars show universe"s early galaxies evolved much faster than previously thought
The universe's early galaxies were less chaotic and developed much faster than previously thought, according to new research looking back more than ten billion years in time. An international team of astronomers led by Durham University, UK, has used.....»»
New JWST observations reveal black holes rapidly shut off star formation in massive galaxies
New research published in Nature showcases new observations from the James Webb Space Telescope (JWST) that suggest black holes rapidly shut off star-formation in massive galaxies by explosively removing large amounts of gas......»»
New models of Big Bang show that visible universe and invisible dark matter co-evolved
Physicists have long theorized that our universe may not be limited to what we can see. By observing gravitational forces on other galaxies, they've hypothesized the existence of "dark matter," which would be invisible to conventional forms of observ.....»»
Hubble peers at pair of closely interacting galaxies
This image from the NASA/ESA Hubble Space Telescope features Arp 72, a very selective galaxy group that only includes two galaxies interacting due to gravity: NGC 5996 (the large spiral galaxy) and NGC 5994 (its smaller companion, in the lower left o.....»»
Study reports that age is the driving force in changing how stars move within galaxies
Galaxies start life with their stars rotating in an orderly pattern but in some the motion of stars is more random. Until now, scientists have been uncertain about what causes this—possibly the surrounding environment or the mass of the galaxy itse.....»»
Image: Hubble finds a field of stars
This image from the NASA/ESA Hubble Space Telescope shows a globular cluster called NGC 1651. Like another recent globular cluster image, NGC 1651 is about 162,000 light-years away in the largest and brightest of the Milky Way's satellite galaxies, t.....»»
Sleeping supermassive black holes awakened briefly by shredded stars
A new investigation into an obscure class of galaxies known as Compact Symmetric Objects, or CSOs, has revealed that these objects are not entirely what they seem. CSOs are active galaxies that host supermassive black holes at their cores. Out of the.....»»
Astronomers discover 49 new galaxies in under three hours
An international team of astronomers has discovered 49 new gas-rich galaxies using the MeerKAT radio telescope in South Africa. Their research is published in Monthly Notices of the Royal Astronomical Society......»»
"Dark stars": Dark matter may form exploding stars, and observing the damage could help reveal what it"s made of
Dark matter is a ghostly substance that astronomers have failed to detect for decades, yet which we know has an enormous influence on normal matter in the universe, such as stars and galaxies. Through the massive gravitational pull it exerts on galax.....»»
Unveiling the formation of the first galaxies
Utilizing high-resolution three-dimensional radiation hydrodynamics simulations and a detailed supernova physics model run on supercomputers, a research team led by Dr. Ke-Jung Chen from the Institute of Astronomy and Astrophysics, Academia Sinica (A.....»»
Yeast uses plastic waste oils to make high-value chemicals
Polyolefins are a type of plastic that is resistant to breaking down. This makes this plastic—a kind found in everything from grocery bags to car bumpers—hard to recycle. In a new study, scientists have discovered a potential solution, the yeast.....»»
Astrophysicist"s research could provide a hint in the search for dark matter
Dark matter is one of science's greatest mysteries. It doesn't absorb, reflect or emit light, so we can't see it. But its presence is implied by the gravitational effects it appears to have on galaxies......»»
Largest-ever map of universe"s active supermassive black holes released
Astronomers have charted the largest-ever volume of the universe with a new map of active supermassive black holes living at the centers of galaxies. Called quasars, the gas-gobbling black holes are, ironically, some of the universe's brightest objec.....»»
Citizen astronomers and AI discover 30,000 ring galaxies
Building on the synergy between citizen astronomer classifications and AI, astronomers have discovered approximately 400,000 spiral galaxies and 30,000 ring galaxies in data from the Subaru Telescope. This is the first example of research building on.....»»
Scientists use spent brewer"s yeast to filter out metal from waste streams
When we recycle electronic devices we can no longer use, we expect to make the most out of the precious natural resources that went into building them. But electronic waste is notoriously difficult to recycle because it's hard to separate the differe.....»»
Daily Telescope: A new Webb image reveals a cosmos full of galaxies
See a galaxy as it was just 430 million years after the Big Bang. Enlarge / This image from Webb’s NIRCam (Near-Infrared Camera) instrument shows a portion of the GOODS-North field of galaxies. (credit: NASA, ESA, CSA, STScI,.....»»
What makes black holes grow and new stars form? Machine learning helps solve the mystery
When they are active, supermassive black holes play a crucial role in the way galaxies evolve. Until now, growth was thought to be triggered by the violent collision of two galaxies followed by their merger; however, new research led by the Universit.....»»
Jaw-dropping Webb photo reveals how the universe turned its lights on
Scientists used the James Webb Space Telescope to view some of the earliest galaxies in the universe, revealing how these objects may have cleared cosmic gas and ended the Dark Ages. The universe was once stuck in the Dark Ages.It was time when.....»»