Academics recreate supernova reaction in a lab
Researchers in Surrey's Nuclear Physics Group have collaborated with TRIUMF National Laboratory (Canada) to achieve the first direct measurement of a supernova reaction in a laboratory using an accelerated beam of radioactive nuclei......»»
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......»»
After disrupting businesses, Google Drive’s secret file cap is dead for now
The reaction to Google Drive's secret 5 million file limit makes Google hit "undo." Enlarge (credit: Google) Google is backtracking on its decision to put a file creation cap on Google Drive. Around two months ago, the c.....»»
Bizarre Quantum Tunneling Observation Throws Out All the Rules
The strange phenomenon of quantum tunneling has been observed in a chemical reaction that defies classical physics.....»»
Nanoparticle with mRNA appears to prevent, treat peanut allergies in mice
Peanut allergies affect 1 in 50 children, and the most severe cases lead to a potentially deadly immune reaction called anaphylactic shock......»»
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.....»»
Mathematical model provides bolt of understanding for lightning-produced X-rays
In the early 2000s, scientists observed lightning discharge producing X-rays comprising high energy photons—the same type used for medical imaging. Researchers could recreate this phenomenon in the lab, but they could not fully explain how and why.....»»
Revealing the pattern between frontal polymerization and natural convection
A self-propagating chemical reaction can transform a liquid monomer into a solid polymer, and the interaction between the propagating front and the reaction's natural convection leads to patterns in the resulting solid polymeric material. New Univers.....»»
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.....»»
An improved, visible light-harvesting catalyst to speed up reactions
Photocatalysis is the use of light to accelerate the rate of a reaction in the presence of a photocatalyst. The catalyst plays a crucial role in this process—it absorbs the light being shined onto it and makes it available in ways that can help acc.....»»
Tech leaders call for pause of GPT-4.5, GPT-5 development due to ‘large-scale risks’
An open letter signed by Elon Musk and a host of prominent academics has warned AI labs to pause development or risk unleashing catastrophic perils on society......»»
Tech leaders call for pause of GPT-4.5, GPT-5 development due to ‘large-sale risks’
An open letter signed by Elon Musk and a host of prominent academics has warned AI labs to pause development or risk unleashing catastrophic perils on society......»»
AI development beyond GPT-4 should be paused – Woz, Musk, academics
Apple cofounder Steve Wozniak has joined Elon Musk and leading AI academics in calling for a pause in advanced AI development. Specifically, the open letter asks for a minimum six-month pause in the development of AI systems more powerful than GPT-4.....»»
Pause AI development or risk disaster, warns Elon Musk
An open letter signed by Elon Musk and a host of prominent academics has warned AI labs to pause development or risk unleashing catastrophic perils on society......»»
Women occupy few academic jobs in Ghana: Culture and society"s expectations are to blame, says researcher
In many parts of the world, men dominate the higher education sector. A 2022 UNESCO report found that, globally, fewer than two out of five senior academics are women. In an earlier report it showed that less than 30% of the world's researchers are w.....»»
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.....»»
Gravastar Supernova Bluetooth Speaker Review: It"s almost perfect
The Supernova Bluetooth Speaker crash-landed, and it's now our go-to speaker for everything from pool parties to game nights.Gravastar's new, portable speakers look like they were ripped straight out of Portal. The unique design of this powerful spea.....»»
Researchers propose electrodriven chemical looping ammonia synthesis mediated by lithium imide
Ammonia (NH3) is a promising energy vector for the storage and utilization of renewable energies. Artificially synthesizing NH3 from its elements requires harsh reaction conditions (400-500 °C, 10–30 MPa) because N2 is inert and nonpolar with a st.....»»
Scientists detect dimer product ROOR generated by self-reaction of ethyl peroxy radicals
Organic peroxy radicals (RO2) are important intermediates in the degradation of atmospheric volatile organic compounds. It not only participates in the cycling of atmospheric radicals and influences oxidizing capacity of the atmosphere, but also cont.....»»
Webb captures rarely seen prelude to a supernova
A Wolf-Rayet star is a rare prelude to the famous final act of a massive star: the supernova. As one of its first observations in 2022, the NASA/ESA/CSA James Webb Space Telescope captured the Wolf-Rayet star WR 124 in unprecedented detail. A distinc.....»»
Hubble captures a messy irregular galaxy which hosted a supernova
This week's image from the Hubble Space Telescope shows a spiral galaxy called NGC 5486, shot through with wisps of pink where new stars are being born......»»