Supernova: A glowing DNA enzyme
Once thought to function primarily as a storage molecule for genetic information, it is now known that DNA can also catalyze chemical reactions. Although such DNA enzymes (deoxyribozymes) have not been identified in nature, they can be isolated in th.....»»
For the first time, astronomers have detected a radio signal from the massive explosion of a dying white dwarf
When stars like our sun die, they tend to go out with a whimper and not a bang—unless they happen to be part of a binary (two) star system that could give rise to a supernova explosion......»»
How to get the glowing Miner’s armor in Zelda: Tears of the Kingdom
You're going to have to put in some work to get this special outfit in The Legend of Zelda: Tears of the Kingdom, but the Miner's armor is definitely worth it!.....»»
Radio signal reveals supernova origin
In the latest issue of the journal Nature, astronomers from Stockholm University reveal the origin of a thermonuclear supernova explosion. Strong emission lines of helium and the first detection of such a supernova in radio waves show that the explod.....»»
Gravitational lens gives us a third estimate of the Universe’s expansion
Lensed images of a supernova appear at different times. Enlarge / The arc of thin, distorted objects around the center of this image is a clear indication of gravitational lensing. (credit: Patrick Kelly, University of Minnesota.....»»
AI gains “values” with Anthropic’s new Constitutional AI chatbot approach
List of guiding AI values draws on UN Declaration of Rights—and Apple's terms of service Enlarge / Anthropic's Constitutional AI logo on a glowing orange background. (credit: Anthropic / Benj Edwards) On Tuesday, AI st.....»»
Scientists develop gene silencing DNA enzyme that can tarsingle molecule
Researchers from the University of California, Irvine have developed a DNA enzyme—or DNAzyme—that can distinguish between two RNA strands inside a cell and cut the disease-associated strand while leaving the healthy strand intact. This breakthrou.....»»
Dark Energy Camera captures the glowing remains of the first documented supernova
The image of the tattered shell of the first recorded supernova was captured by the U.S. Department of Energy-fabricated Dark Energy Camera, DECam. The camera is mounted on the U.S. National Science Foundation's Víctor M. Blanco 4-meter Telescope at.....»»
Researchers model "link" between improved photosynthesis and increased yield
A team from the University of Illinois has modeled improving photosynthesis through enzyme modification and simulated soybean growth with realistic climate conditions, determining to what extent the improvements in photosynthesis could result in incr.....»»
How a single enzyme unleashes a complex DNA repair process
Our DNA is constantly exposed to damaging factors that can lead to aging and age-related diseases such as cancer. PARP1 is an important enzyme that facilitates the response to DNA damage by attaching chemical groups called ADP-ribose to proteins. Pub.....»»
Highly sensitive Raman probe detects enzyme expression in heterogeneous tissues
Raman imaging offers a greater potential for detecting multiple enzyme activities than fluorescence imaging, demonstrate Tokyo Tech researchers by developing 9CN-rhodol-based activatable Raman probes using a novel mechanism for Raman signal activatio.....»»
How does an aging-associated enzyme access our genetic material?
New research provides insight into how an enzyme that helps regulate aging and other metabolic processes accesses our genetic material to modulate gene expression within the cell. A team led by Penn State researchers have produced images of a sirtuin.....»»
Scientists increase efficiency of enzyme that breaks down PET plastic
One of the most widely used plastics in the world is polyethylene terephthalate, or PET for short. It is everywhere in our daily lives in the form of reusable PET drink bottles. At the end of the lifecycle of a product containing PET, the environment.....»»
James Webb captures stunning image of supernova remnant Cassiopeia A
A stunning new image from the James Webb Space Telescope shows a famous supernova remnant called Cassiopeia A, or Cas A......»»
Network-watching gadget Monitor-IO chooses a graceful, owner-friendly death
Device owners get a standalone, locally run image they can flash. Enlarge / The Monitor-IO in its natural habitat, glowing green to let you know that everything is copacetic with the network to which it's connected. (credit: Jim.....»»
Important enzyme for the composition of the gut microbiome discovered
The intestinal microbiome, i.e., the community of bacteria and other microorganisms that live in the human gut, has been shown to affect the metabolism and the immune system. We still do not fully understand how the symbiosis between a healthy microb.....»»
SN 2019odp is a massive oxygen-rich Type Ib supernova, study finds
An international team of astronomers has conducted follow-up photometric and spectroscopic observations of a supernova designated SN 2019odp. Results of the observational campaign, published March 24 on the arXiv pre-print server, indicate that SN 20.....»»
Brightest-ever gamma-ray burst (the “BOAT”) continues to puzzle astronomers
No evidence of associated supernova, and afterglow radio data contradicts current models. On October 9, 2022, Swift’s X-Ray Telescope captured the afterglow of the brightest gamma-ray burst ever recorded, called GRB 221009A. On th.....»»
Structure of "oil-eating" enzyme opens door to bioengineered catalysts
Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have produced the first atomic-level structure of an enzyme that selectively cuts carbon-hydrogen bonds—the first and most challenging step in turning simple hydrocarbons.....»»
Mimicking biological enzymes may be key to hydrogen fuel production
An ancient biological enzyme known as nickel-iron hydrogenase may play a key role in producing hydrogen for a renewables-based energy economy, researchers have found. Careful study of the enzyme has led chemists from the University of Illinois Urbana.....»»
Artificial intelligence finds the first stars were not alone
By using machine learning and state-of-the-art supernova nucleosynthesis, a team of researchers have found the majority of observed second-generation stars in the universe were enriched by multiple supernovae. Their findings are reported in The Astro.....»»