Researchers have found that the black hole at the center of our galaxy, Sagittarius A*, not only flares irregularly from day to day but also in the long term. Sagittarius A* is a strong source of radio, X-rays and gamma rays (visible light is blocked by intervening gas and dust). Astronomers have known for decades…

New calculations show that a black hole slurping down a star may not have generated enough energy to launch a neutrino. Researchers traced the neutrino back to a supermassive black hole that had just ripped apart and swallowed a star. Known as a tidal disruption event (TDE), AT2019dsg occurred just months earlier — in April…

Researchers address some of the questions surrounding these massive and enigmatic features of the universe by using new, high-powered simulations. UConn Assistant Professor of Physics Daniel Angles-Alcazar, lead author on a paper published today in The Astrophysical Journal, addresses some of the questions surrounding these massive and enigmatic features of the universe by using new,…

A team of researchers has set a new record for preparing and measuring the quantum bits, or qubits, inside of a quantum computer without error. The techniques they have developed make it easier to build quantum computers that outperform classical computers for important tasks, including the design of new materials and pharmaceuticals. Currently, the most…

To alleviate this growing problem of email scams, computer scientists have developed a prototype of a machine-learning based detector that automatically detects and stops lateral phishing attacks. Whereas in the past attackers would send phishing scams from email accounts external to an organization, recently there’s been an explosion of email-borne scams in which an attackers…

Just over 15 years after the first reported incident of phishing, new research suggests tech companies could be doing more to protect users from the threat of scams. However, greater awareness of the issue is also needed among individuals and organizations. However, users also need to make themselves more aware of the dangers to ensure…

Current methods for anonymizing data leave individuals at risk of being re-identified, according to new research. The researchers say their paper, published today in Nature Communications, demonstrates that allowing data to be used — to train AI algorithms, for example — while preserving people’s privacy, requires much more than simply adding noise, sampling datasets, and…

A new type of computer memory to solve the digital technology energy crisis has been invented and patented by scientists. The device is the realization of the decades long search for a ‘Universal Memory’ to replace the $100 billion market for Dynamic Random Access Memory (DRAM) and flash drives. It promises to transform daily life…

Cybersecurity researchers have developed an automated program aimed at foiling smart meter hacking and boosting security in the smart grid. Cybersecurity researcher Karthik Pattabiraman, an associate professor of electrical and computer engineering at UBC, recently developed an automated program aimed at improving the security of these devices and boosting security in the smart grid. «Our…

Successful new field tests of a continuous-variable quantum key distribution (CV-QKD) system over commercial fiber networks could pave the way to its use in metropolitan areas. That is the key achievement from a team of scientists, which demonstrates CV-QKD transmission over commercial deployed fiber link with a distance of 50 kilometers. That is the key…