Lifeboat Foundation

The discovery, one of the only confirmed intermediate-mass black holes, lives in an equally rare object known as a low-mass, stripped nucleus.

Astronomers discovered a black hole unlike any other. At one hundred thousand solar masses, it is smaller than the black holes we have found at the centers of galaxies, but bigger than the black holes that are born when stars explode. This makes it one of the only confirmed intermediate-mass black holes, an object that has long been sought by astronomers.

“We have very good detections of the biggest, stellar-mass black holes up to 100 times the size of our sun, and supermassive black holes at the centers of galaxies that are millions of times the size of our sun, but there aren’t any measurements of black between these. That’s a large gap,” said senior author Anil Seth, associate professor of astronomy at the University of Utah and co-author of the study. “This discovery fills the gap.”

The first molecular electronics chip has been developed, realizing a 50-year-old goal of integrating single molecules into circuits to achieve the ultimate scaling limits of Moore’s Law. Developed by Roswell Biotechnologies and a multi-disciplinary team of leading academic scientists, the chip uses single molecules as universal sensor elements in a circuit to create a programmable biosensor with real-time, single-molecule sensitivity and unlimited scalability in sensor pixel density. This innovation, appearing this week in a peer-reviewed article in the Proceedings of the National Academy of Sciences (PNAS), will power advances in diverse fields that are fundamentally based on observing molecular interactions, including drug discovery, diagnostics, DNA sequencing, and proteomics.

“Biology works by single molecules talking to each other, but our existing measurement methods cannot detect this,” said co-author Jim Tour, Ph.D., a Rice University chemistry professor and a pioneer in the field of molecular electronics. “The sensors demonstrated in this paper for the first time let us listen in on these molecular communications, enabling a new and powerful view of biological information.”

The molecular electronics platform consists of a programmable semiconductor chip with a scalable sensor array architecture. Each array element consists of an electrical current meter that monitors the current flowing through a precision-engineered molecular wire, assembled to span nanoelectrodes that couple it directly into the circuit. The sensor is programmed by attaching the desired probe molecule to the molecular wire, via a central, engineered conjugation site. The observed current provides a direct, real-time electronic readout of molecular interactions of the probe. These picoamp-scale current-versus-time measurements are read out from the sensor array in digital form, at a rate of 1,000 frames per second, to capture molecular interactions data with high resolution, precision and throughput.

Aboard the International Space Station, NASA Expedition 66 Flight Engineers Mark Vande Hei and Kayla Barron of NASA answered pre-recorded questions about life and work as astronauts on the orbital laboratory during an in-flight event Jan. 24 with students attending the Center for Early Childhood Education in Hollywood, California. Vande Hei and Barron are in the midst of long duration missions living and working aboard the microgravity laboratory to advance scientific knowledge and demonstrate new technologies for future human and robotic exploration missions as part of NASA’s Moon and Mars exploration approach, including lunar missions through NASA’s Artemis program.

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US medical drone delivery specialist Spright extends partnership with Germany’s Wingcopter to use its eVTOL UAV exclusively in its fleets.

German drone company Wingcopter and US medical UAV services provider Spright have deepened their relationship with a new deal for electric vertical takeoff and (eVTOL) aerial delivery craft valued at $16 million dollars.

Continue reading “Wingcopter, Spright ink $16 million eVTOL drone delivery deal” »

Innovating Life-Saving Therapeutic Devices — Dr. Amy Throckmorton, PhD — BioCirc Research Laboratory, Drexel University School of Biomedical Engineering, Science and Health Systems.

Dr. Amy Throckmorton, Ph.D. (https://drexel.edu/biomed/faculty/core/ThrockmortonAmy/) is Associate Professor and Director of the BioCirc Research Laboratory, in the School of Biomedical Engineering, Science and Health Systems, at Drexel University.

Continue reading “Dr. Amy Throckmorton, PhD — BioCirc / Drexel University — Innovating Life-Saving Therapeutic Devices” »

Building resilience for healthy aging — dr. charlotte yeh, MD, chief medical officer, AARP services.

Dr Charlotte Yeh, MD Chief Medical Officer, AARP Services, Inc. (https://www.aarp.org/about-aarp/aarp-services/), where she works with the independent carriers that make health-related products and services available to AARP members, to identify programs and initiatives that will lead to enhanced care for older adults.

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By using quantum key distribution (QKD), quantum cryptographers can share information via theoretic secure keys between remote peers through physics-based protocols. The laws of quantum physics dictate that photons carrying signals cannot be amplified or relayed through classical optical methods to maintain quantum security. The resulting transmission loss of the channel can limit its achievable distance to form a huge barrier to build large-scale quantum secure networks. In a new report now published in Nature Photonics, Shuang Wang and a research team in quantum information, cryptology and quantum physics in China developed an experimental QKD system to tolerate a channel loss beyond 140 dB across a secure distance of 833.8 km to set a new record for fiber-based quantum key distribution. Using the optimized four-phase twin-field protocol and high quality setup, they achieved secure key rates that were more than two orders of magnitude greater than previous records across similar distances. The results form a breakthrough to build reliable and terrestrial quantum networks across a scale of 1,000 km.

Quantum cryptography and twin-field quantum key distribution (QKD)

Quantum key distribution is based on fundamental laws of physics to distribute secret bits for information-theoretic secure communication, regardless of the unlimited computational power of a potential eavesdropper. The process has attracted widespread attention in the past three decades relative to the development of a global quantum internet, and matured to real-world deployment through optical-fiber networks. Despite this, wider applications of QKD are limited due to channel loss, limiting increase in the key rate and range of QKD. For example, photons are carriers of quantum keys in a QKD setup, and they can be prepared at the single-photon level to be scattered and absorbed by the transmission channel. The photons, however, cannot be amplified, and therefore the receiver can only detect them with very low probability. When transmitted via a direct fiber-based link from the transmitter to the receiver, the key rate can therefore decrease with transmission distance.

Solar Electric Vehicle (SEV) startup Aptera Motors, recently shared test footage of the beta version of its upcoming SEV. The SEV prototype was seen on a test track alongside the three alpha versions already unveiled by Aptera. The beta version represents Aptera’s last phase before pre-production and deliveries later this year.

Aptera Motors is a mobility startup based in San Diego, California, that specializes in solar electric vehicles (SEVs). Since this is the second iteration of the company intending to bring its flagship SEV to market, it has been a story we at Electrek have been following for quite some time.

After unveiling its new SEV in late 2020 with the same monicker as the company, Aptera Motors has been quite prudent in keeping the public and its growing list of reservation holders in the know about its progress.

Wed, Feb 2 at 11:30 AM PST.

Dr Jim Green, NASA Office of the Chief Scientist, looks at the science behind the blockbuster movie: The Martian.

The bestselling book about an astronaut stranded on Mars was brought to life in Ridley Scott’s film, The Martian. Before production started, Ridley called NASA to obtain information about NASA’s plans for human exploration of Mars as well as the science of Mars that would contribute to a realistic look and feel of the film in keeping with the approach laid out in Andy Weir’s book.

Continue reading “Tha Martian: Science Fiction and Science Fact” »