A trio of astrophysicists, two from Colgate University and the third from the University of Texas, has found evidence of dark stars courtesy of data from the James Webb Space Telescope. In their study, reported in Proceedings of the National Academy of Sciences, Cosmin Ilie, Jillian Paulin and Katherine Freese, analyzed three galaxies spotted by the JWST and how they might relate to dark stars.
Back in 2007, Freese, along with Douglas Spolyar and Paolo Gondolo, proposed the idea of a dark star —rather than nuclear fusion, these theorized dark stars are powered by dark matter. Since that time, researchers have continued to study the idea of such a star, built models to show what they might look like and derived a list of characteristics that such a star might have. In the current study, Ilie, Paulin and Freese have found three candidates in Webb data that fit the bill.
Dark stars, the team suggests, likely could have been born during the early days of the universe—like other stars, they would have been made mostly of helium and hydrogen. But they would also contain dark matter—enough to provide a heat source. Such stars would not then be lit by nuclear fusion. If such stars did exist, they would be much larger than other types of stars that have been observed—so large that they might look like galaxies from Earth-based telescopes.
While Tesla famously won’t support CarPlay, code found in its iOS app update points to at least testing of AirPlay in its cars.
It’s never been possible to use Apple’s CarPlay in Teslas — not without a hack, and a convoluted one at that — but CEO Elon Musk has previously hinted at AirPlay support.
Now according to the unofficial “Tesla App Updates (iOS)” account on Twitter, the latest version of Tesla’s iPhone app includes a mention of AirPlay in its code.
These monochromatic projects stray from typical partitions, using curved surfaces and smooth finishes to create intrigue, interaction and individuality in the cultural sector.
An interdisciplinary team at the Advanced Quantum Testbed (AQT) at Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California, Berkeley’s Quantum Nanoelectronics Laboratory (QNL) achieved a technical breakthrough using qutrits—three-level systems—on a superconducting quantum processor.
The team successfully entangled two transmon qutrits with gate fidelities significantly higher than in previously reported works, thus getting closer to enabling ternary logic that can encode more information than their binary counterparts—qubits.
Published in Nature Communications in December 2022 and featured as an editor’s highlight, this experimental success pushes forward AQT’s qutrit research and development, including previous experimental successes published in 2021 in Physical Review X and Physical Review Letters. Ternary quantum information processors offer significant potential advantages in quantum simulation and error correction, as well as the ability to improve certain quantum algorithms and applications.
Summary: Researchers have innovated a method to produce lab-grown mini brains, known as human brain organoids, free of animal cells, promising a more accurate study and treatment of neurodegenerative conditions.
Previously, brain organoids were grown using a substance derived from mouse sarcomas called Matrigel, leading to inconsistencies due to its undefined composition and variability. The new method uses an engineered extracellular matrix free of animal components, improving the neurogenesis of brain organoids.
This breakthrough allows for more accurate replication of human brain conditions and could open doors for personalized treatment of neurodegenerative diseases such as ALS and Alzheimer’s.
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IVO Ltd. believes its new ‘Quantum Drive’ defies the laws of motion, and it aims to put it to the test by sending it to orbit on a SpaceX rocket.
US company IVO Ltd., a wireless power technology firm, is set to send an all-electric propulsion system for satellites to space for the first time in October.
