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.....»»
Study investigates a rare Type Icn supernova
An international team of astronomers has conducted optical and near-infrared observations of a rare Type Icn supernova known as SN 2022ann. The results of the study, published November 9 on the preprint server arXiv, shed more light on the nature of.....»»
Two volcanoes rumble into action in Russia"s far east
Towering clouds of ash and glowing lava are spewing from two volcanoes on Russia's Kamchatka Peninsula and scientists say major eruptions could be on the way......»»
Gene-reading enzyme razes and rebuilds DNA-winding structures in its path
RIKEN researchers have shown how a gene-reading enzyme manages to dismantle bead-like structures of DNA and reassemble them at high speed, without disrupting the integrity of genomic organization. Their findings, now published in Science, could help.....»»
Mathematical analysis brings new understanding to a recently published kinetic model of ERK phosphorylation
Extracellular Signal Regulated Kinase (ERK) plays an important role in multiple cell signaling processes, by catalyzing the phosphorylation of a variety of substrates. The enzyme itself is activated by phosphorylation at two different sites by a seco.....»»
Hubble captures rare image of a supernova as it happens
The Hubble Space Telescope recently managed to capture three different moments of a supernova in a single image......»»
Single Hubble image captured supernova at three different times
An image taken in 2010 captured the lensed supernova, but nobody noticed. Enlarge / On the left, the full Hubble image. On the right, different images of the gravitationally lensed object. (credit: NASA, ESA, STScI, Wenlei Chen,.....»»
Chemists develop enzyme-free cholesterol testing system
Scientists at the Ural Federal University (UrFU) have developed a new sensor device for determining cholesterol levels in blood. The system does not use protein compounds such as enzymes. Chemists replaced them with an inorganic analog—copper chlor.....»»
Research advances artificial enzyme engineering
While corrosion resistance, durability and low cost make plastic a very efficient resource, one of its major drawbacks is the harm it poses to the environment. According to a report from Greenpeace U.S., 51 million tons of plastic waste were generate.....»»
Enzymes in human cells probably evolved from primordial organisms
A team of researchers at Umeå University has discovered that an enzyme in human cells has probably evolved from an ancient single-celled organism. The enzyme's unique properties mean that it could be used as a building block in the design of new enz.....»»
Hubble captures a glowing bridge of stars in Wild’s Triplet
This week's image from the Hubble Space Telescope shows two of a set of three interacting galaxies called Arp 248......»»
Artificial intelligence makes enzyme engineering easy
You can't move a pharmaceutical scientist from a lab to a kitchen and expect the same research output. Enzymes behave exactly the same: They are dependent upon a specific environment. But now, in a study recently published in ACS Synthetic Biology, r.....»»
$550 PlayStation VR2 launches on Feb. 22, 2023
Six games available for preorder alongside headset on Nov. 15. Enlarge / Say so long to the original PSVR's glowing blue lights. (credit: PlayStation Blog) Sony's PlayStation VR2 headset will cost $550 in the US when it.....»»
The ghostly remnants of a dead star captured in stunning image
The ghostly Vela supernova remnant is located 800 light-years away and was created by the death of a star around 11,000 years ago......»»
Researchers determine three-dimensional structure of PAPP-A
Danish researchers have determined the three-dimensional structure of the proteolytic enzyme PAPP-A. The results may allow us to better understand the basic biology that regulates linear growth of vertebrates. The same regulatory mechanisms are also.....»»
ESO captures the ghost of a giant star
A spooky spider web, magical dragons or wispy trails of ghosts? What do you see in this image of the Vela supernova remnant? This beautiful tapestry of colors shows the ghostly remains of a gigantic star, and was captured here in incredible detail wi.....»»
Hubble captures rare "light echo" from star explosion
When a star explodes (a supernova), it sends its intense burst of light out in all directions. On rare occasions, in the months and years that follow, rings of light or "light echoes" spread out from the original supernova position......»»
The ‘Brightest of All Time’ Gamma-Ray Burst Sparks a Supernova Hunt
Telescopes around the world are capturing photons from the blast, and researchers anticipate exciting discoveries ahead......»»
New enzyme inhibitor shows promise for treating cancers, autoimmune diseases
Researchers at the University of Illinois Chicago have found a small molecule capable of manipulating an immune process that plays an important role in cancers and autoimmune diseases......»»
Supernova remnant SNR 0509-67.5 investigated with Chandra
Using NASA's Chandra X-ray observatory, astronomers have carried out an X-ray proper motion study of a supernova remnant known as SNR 0509-67.5. Results of the research, published October 5 on arXiv.org, yield essential information regarding the expa.....»»
Astronomers develop ‘early warning system’ for stars about to go supernova
We can't predict exactly when any given star will go supernova, but now astronomers have come up with a method to spot stars approaching this critical point......»»