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.....»»
Probing the mysteries of neutron stars with a surprising earthly analog
Ultracold gases in the lab could help scientists better understand the universe. Enlarge / Spectral analysis indicates that silica is present in this supernova remnant, Cassiopeia A. (credit: NASA/JPL-Caltech/ O. Krause (Steward.....»»
Experiments provide insights into the molecular mechanism for memory and learning
Researchers at Kanazawa University report in Science Advances high-speed atomic force microscopy experiments that show the structural and chemical changes in an enzyme thought to play a vital role in modulating the strength of neural connections......»»
Webb locates dust reservoirs in two supernovae
Supernovae, the explosive deaths of stars, are some of the universe's biggest bursts of energy and light. When they erupt, one supernova can shine even brighter than an entire galaxy......»»
Our Solar System possibly survived a supernova because of how the Sun formed
The gas that produce stars also cushion them from the blast of nearby supernovae. Enlarge / Artist's conception of the early Solar System, which was at risk of a nearby supernova. (credit: NASA/JPL-Caltech) Stars are tho.....»»
A new bacterial blueprint to aid in the war on antibiotic resistance
A team of scientists from around the globe, including those from Trinity College Dublin, has gained high-res structural insights into a key bacterial enzyme that may help chemists design new drugs to inhibit it and thus suppress disease-causing bacte.....»»
Scientists designed new enzyme using Antarctic bacteria and computer calculations
For the first time, researchers have succeeded in predicting how to change the optimum temperature of an enzyme using large computer calculations. A cold-adapted enzyme from an Antarctic bacterium was used as a basis. The study was published in the j.....»»
New protein scaffolds for assembling multi-enzyme systems with unprecedented control
Cell-free biocatalysis is being increasingly used as a substitute for conventional chemical catalysts, given that enzymes (biological catalysts) are more sustainable and selective in the manufacture of valuable chemicals. Chemical biomanufacturing ha.....»»
Molecular filament shielded our young solar system from supernova, suggests study
Isotope ratios found in meteorites suggest that a supernova exploded nearby while the sun and solar system were still forming. But the blast wave from a supernova that close could have potentially destroyed the nascent solar system. New calculations.....»»
New nearby supernova could be used by aliens to get our attention
A team of astronomers from the University of Washington, the SETI Institute, Yale University and Smith College is searching the vicinity of a new supernova in the spiral arms of the Pinwheel Galaxy hoping to find a signal from an alien civilization......»»
Scientists create fluorogenic probe to detect enzyme linked to early stage of Alzheimer"s
Alzheimer's disease, a neurodegenerative disorder, results in memory loss and compromises cognitive abilities in many people beyond the age of 60. Currently used techniques to detect manifestations of the disease (MRI, PET, and CT scans) are complex,.....»»
These are the fastest stars in the galaxy
Until recently, there were only ten known stars on trajectories that will allow them to escape the Milky Way galaxy, thrown astray by powerful supernova explosions. A new study using data from ESA's Gaia survey this June has revealed an additional si.....»»
“Lensed” supernova could shed light on fundamental forces shaping Universe
Such objects could help refine models for Hubble Constant, dark energy, and dark matter. Enlarge / Gravitational lensing has revealed a previously unknown supernova explosion more than 4 billion light-years away. (credit: Joel Jo.....»»
Astronomers discover supernova explosion through rare "cosmic magnifying glasses"
According to Einstein's general theory of relativity, time and space are fused together in a quantity known as spacetime. The theory suggests that massive objects, like a galaxy or galaxy clusters, can cause spacetime to curve......»»
A star blew up, and scientists snapped a photo of the violent explosion
Boom.Last month astronomers spotted a star that exploded in the colossal Pinwheel galaxy some 21 million light-years away — which in cosmic terms is relatively close. The outburst of a massive star collapsing on itself, called a supernova, crea.....»»
A telescope happened to be pointing at the brightest supernova yet observed
The BOAT—brightest of all time—reveals the mechanics of gamma-ray bursts. Enlarge / Artist's conception of a gamma-ray burst. (credit: NASA) Supernovae are some of the most energetic events in the Universe. And a sub.....»»
Gemini North back on sky with dazzling image of supernova in the Pinwheel Galaxy
The Gemini North telescope, one half of the International Gemini Observatory operated by NSF's NOIRLab, has returned from a seven-month hiatus literally with a bang, as it has captured the spectacular aftermath of a supernova, a massive star that exp.....»»
Researchers discover chemical evidence for pair-instability supernova from a very massive first star
The first stars illuminated the universe during the Cosmic Dawn and put an end to the cosmic "dark ages" that followed the Big Bang. However, the distribution of their mass is one of the great unsolved mysteries of the cosmos......»»
Carbon-based stimuli-responsive nanomaterials: Their classification and application
Carbon-based stimuli-responsive nanomaterials are gaining much attention due to their versatility, including disease diagnosis and treatment. They work under endogenous (pH, temperature, enzyme, and redox) or exogenous (temperature, light, magnetic f.....»»
How Steve Jobs" legacy has changed
When Steve Jobs died of cancer in his California home in 2011, the world rushed to eulogize him in glowing terms: Genius. Visionary. A modern-day Thomas Edison......»»
Astronomers Have Spotted a Once-in-a-Decade Supernova--and You Can, Too
The death throes of a massive star in the galaxy M101, located just 21 million light-years away from Earth, are entrancing professional and amateur astronomers alike.....»»