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.....»»
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,.....»»
Mighty radio bursts linked to massive galaxies: New clues about how magnetars form
Since their discovery in 2007, fast radio bursts—extremely energetic pulses of radio-frequency light—have lit up the sky repeatedly, leading astronomers on a chase to uncover their origins. Currently, confirmed fast radio bursts, or FRBs, number.....»»
Cells have more mini "organs" than once thought—these rogue organelles challenge biology"s fundamentals
Think back to that basic biology class you took in high school. You probably learned about organelles, those little "organs" inside cells that form compartments with individual functions. For example, mitochondria produce energy, lysosomes recycle wa.....»»
Webb confirms a longstanding galaxy model
Perhaps the greatest tool astronomers have is the ability to look backward in time. Since starlight takes time to reach us, astronomers can observe the history of the cosmos by capturing the light of distant galaxies......»»
Scientists tackle farm nutrient pollution with sustainable, affordable designer biochar pellets
What if farmers could not only prevent excess phosphorus from polluting downstream waterways, but also recycle that nutrient as a slow-release fertilizer, all without spending a lot of money? In a first-of-its-kind field study, University of Illinois.....»»
Observations detect hundreds of possible supergiant stars in two nearby galaxies
Using the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST), Chinese astronomers have identified nearly 300 candidate supergiant stars in the Andromeda and Triangulum galaxies. The finding was reported in a research paper published O.....»»
Paper-aluminum combo can replace plastic for strong, sustainable packaging
Takeout containers get your favorite noodles from the restaurant to your dining table (or couch) without incident, but they are nearly impossible to recycle if they are made from foil-lined plastics. Research published in ACS Omega suggests that repl.....»»
Webb and Hubble examine spooky galaxy pair
Stare deeply at these galaxies. They appear as if blood is pumping through the top of a flesh-free face. The long, ghastly "stare" of their searing eye-like cores shines out into the supreme cosmic darkness......»»
Why NASA"s SPHEREx mission will make "Most colorful" cosmic map ever
NASA's SPHEREx mission won't be the first space telescope to observe hundreds of millions of stars and galaxies when it launches no later than April 2025, but it will be the first to observe them in 102 colors......»»
A new view of the in-between years of our universe
Just like we use photos to reflect on memories of our past, astrophysicists want to use images of far-off galaxies to understand what the universe was like in its juvenile years. But current imaging technology can only reach so far back in history—.....»»
A near-Earth microquasar emerges as a source of powerful radiation
Modern astronomy has clung to the belief that the relativistic outflows or jets, responsible for the existence of electromagnetic radiation of particularly high energies, are located in the nuclei of active galaxies distant from Earth. However, a dif.....»»
Zoom into the first page of ESA Euclid"s great cosmic atlas
On 15 October 2024, ESA's Euclid space mission revealed the first piece of its great map of the universe, showing millions of stars and galaxies......»»
Astronomers find Webb data conflict with reionization models
Reionization is a critical period when the first stars and galaxies changed the physical structure of their surroundings, and eventually the entire universe. Established theories state that this epoch ended around 1 billion years after the Big Bang......»»
Turkey"s plan to recycle more has made life hard for its informal waste pickers
Turkey's 500,000 or so informal waste pickers carry out around 80% of the recycling in the country. These workers, who are also known as çekçekçi, are essential for separating out waste in a country where this is rarely done at source......»»
Scientists Figured Out How to Recycle Plastic by Vaporizing It
A new technique could prevent tons of waste in the future—if it can scale......»»
Poor countries recycle far more imported plastic than previously thought—but it"s not enough
Countries like Malaysia import many metric tons of plastic waste from Europe each year, paying a few pennies per kilo. This might seem strange, but according to Kai Li, it makes sense......»»
Precise locations of more than 1 million galaxies revealed
The Physics of the Accelerating Universe Survey (PAUS), an international collaboration across 14 institutions, has covered a sky area of 50 square degrees, similar to approximately 250 full moons......»»
Scientists identify structural basis of stitched-together protein complexes that recycle most proteins in cells
Scientists at Sanford Burnham Prebys have developed a clearer picture of how crucial machinery in the human cell's recycling process for obsolete and misshapen proteins—known as proteasomes—are formed......»»