Renaissance astronomer Tycho Brahe, known for his studies of the heavens, was also a alchemist. A new study of glass shards reveals what Brahe was working with in his lab.
Researchers in Amsterdam discover how Rembrantd made the golden pigment in The Night Watch.
Astronomers have uncovered the secrets behind an epic collision of two massive galaxy clusters, showing that dark matter and regular matter can actually separate during these huge events.
Located billions of light-years away, these clusters are home to thousands of galaxies and provide deep insights into the complexities of our universe.
Continue reading “Dark matter seen separating from normal matter after galaxy cluster collision” »
NASA’s Fermi Telescope has revealed new details about the brightest of all time gamma-ray burst which may help explain these extreme and mysterious cosmic events.
Gamma-ray bursts (GRBs) usually last less than a second. They originate from the dense remains of a dead giant star’s core, called a neutron star. But what causes neutron stars to release huge amounts of energy in the form of gamma radiation is still a mystery.
In October 2022, astronomers detected the largest gamma-ray burst ever seen – GRB 221009A. It came from a supernova about 2.4 billion light years away. The event had an intensity at least 10 times greater than any other GRB detected. It was dubbed the BOAT, for brightest of all time.
The X14-class solar flare, which erupted from the opposite side of the sun, was the most powerful of this solar cycle so far.
Grasping the precise energy landscapes of quantum particles can significantly enhance the accuracy of computer simulations for material sciences. These simulations are instrumental in developing advanced materials for applications in physics, chemistry, and sustainable technologies. The research tackles longstanding questions from the 1980s, paving the way for breakthroughs across various scientific disciplines.
An international group of physicists, led by researchers at Trinity College Dublin, has developed new theorems in quantum mechanics that explain the “energy landscapes” of quantum particle collections. Their work resolves decades-old questions, paving the way for more accurate computer simulations of materials. This advancement could significantly aid scientists in designing materials poised to revolutionize green technologies.
The new theorems have just been published in the prominent journal Physical Review Letters. The results describe how the energy of systems of particles (such as atoms, molecules, and more exotic matter) changes when their magnetism and particle count change. Solving an open problem important to the simulation of matter using computers, this extends a series of landmark works commencing from the early 1980s.
Utilizing data from NASA ’s Fermi Gamma-ray Space Telescope, researchers discovered a unique energy peak in the aftermath of the brightest Gamma-Ray burst ever seen, suggesting the annihilation of electrons and positrons. This finding provides new insights into the behavior of cosmic jets and the extreme conditions following such bursts.
In October 2022, astronomers were stunned by what was quickly dubbed the BOAT — the brightest-of-all-time gamma-ray burst (GRB). Now an international science team reports that data from NASA’s Fermi Gamma-ray Space Telescope reveals a feature never seen before.
Caltech engineers have introduced an innovative metasurface that manipulates light to provide multiple communication channels at optical frequencies.
This technology promises to enhance data transmission in various fields including space communications and LiDAR, moving beyond traditional electronic methods and offering substantial bandwidth improvements.
Revolutionizing Wireless Communication With Metasurfaces.
These advancements in AI technologies are happening in China despite the stringent measures that the U.S. is placing against its technological ambitions. The bans and embargoes on high-end chips Washington has placed on Beijing meant that Chinese companies have difficulty sourcing Nvidia’s latest, most potent AI processors. While China is hard at work trying to catch up on the hardware side of things, many experts believe it’s still at least a decade away from achieving parity with the United States.
It’s evident, though, that Chinese tech firms can catch up on the software side despite the hardware bans. Nevertheless, the White House wants to change that with a bill in the U.S. Congress that would give the American government more control over limiting the export of American AI code. Some parties are trying to limit the development of open-source AI tech to stop Chinese companies from using it, but doing so might do more harm than good for the U.S.
Clément Delangue, the CEO of Hugging Face, a firm that lets its users share its open-source AI projects, said, “Open-source AI is the foundation of AI development,” referring to how the collaboration of researchers and organizations in the U.S. allowed it to become the world leader in AI, “and it looks like China could do the same thing.”
