Lab-based studies reveal how carbon atoms diffuse on the surface of interstellar ice grains to form complex organic compounds, crucial to reveal the chemical complexity in the universe. Uncovering the organic (carbon-based) chemistry in interstellar space is central to understanding the chemistry of the universe in addition to the origin of life on Earth and the possibilities for life elsewhere. The list of organic molecules detected in space and understanding how they could be interacting is steadily expanding due to…

Herbig-Haro (HH) objects are luminous regions surrounding newborn stars, formed when stellar winds or jets of gas spewing from these newborn stars form shock waves colliding with nearby gas and dust at high speeds. This image of HH 211 from NASA’s James Webb Space Telescope reveals an outflow from a Class 0 protostar, an infantile analog of our Sun when it was no more than a few tens of thousands of years old and with a mass only 8% of…

Göttingen University researchers use mathematical model to identify new mechanism for control of phase separation. The very first life on earth is thought to have developed from “protocells” – liquid mixtures of many different types of molecules. Researchers from the University of Göttingen have now shown that in such mixtures, small imbalances in the number of molecules of different types can have an unexpected effect. A surprising interplay with the complex pattern of interactions strongly amplifies such imbalances – meaning…

A research team relies on measuring the number of galaxy members to determine the mass of galaxy clusters. “Cosmologists believe that only about 20% of the total matter is made of regular or ‘baryonic’ matter, which includes stars, galaxies, atoms, and life,” explains first author Dr. Mohamed Abdullah, a researcher at the National Research Institute of Astronomy and Geophysics-Egypt, Chiba University, Japan. “About 80% is made of dark matter, whose mysterious nature is not yet known but may consist of…

Quantum computers can solve certain computational problems much faster than ordinary computers by using specific quantum properties. The basic building blocks of such machines are called quantum-bits or qubits. Qubits can be realised using several physical platforms such as nuclear spins, trapped ions, cold atoms, photons, and using superconducting Josephson circuits. Several such qubits operate in the microwave frequency domain, and require specialised room temperature microwave electronics for control and readout of the quantum states of the qubits. However, there…

Tiny oil droplets and air bubbles supply the sticky summer staple with its signature chewiness. American beach town boardwalks often boast numerous storefronts advertising saltwater taffies. The candy calls to mind summer vacations, a rainbow assortment of colors and flavors, and a sweetness that sticks to the roof of your mouth. But when San To Chan received saltwater taffy to celebrate their thesis defense, their first question was not of the flavor but of the physics. When measuring how the…

A new investigation with NASA’s James Webb Space Telescope into K2-18 b, an exoplanet 8.6 times as massive as Earth, has revealed the presence of carbon-bearing molecules including methane and carbon dioxide. Webb’s discovery adds to recent studies suggesting that K2-18 b could be a Hycean exoplanet, one which has the potential to possess a hydrogen-rich atmosphere and a water ocean-covered surface. The first insight into the atmospheric properties of this habitable-zone exoplanet came from observations with NASA’s Hubble Space Telescope,…

Researchers in Germany and Japan have been able to increase the diffusion of magnetic whirls, so called skyrmions, by a factor of ten. In today’s world, our lives are unimaginable without computers. Up until now, these devices process information using primarily electrons as charge carriers, with the components themselves heating up significantly in the process. Active cooling is thus necessary, which comes with high energy costs. Spintronics aims to solve this problem: Instead of utilizing the electron flow for information…

A team of researchers, engineers and technicians has developed a ‘SMART box’ to power the world’s largest radio telescope. The Power and Signal Distribution (PaSD) SMART boxes (Small Modular Aggregation RFoF Trunk) are an essential component of the Square Kilometre Array Low frequency (SKA-Low) telescope, currently under construction at Inyarrimanha Ilgari Bundara, the CSIRO Murchison Radio-astronomy Observatory, in Western Australia. The SMART boxes provide electrical power to the SKA-Low telescope’s 131,072 antennas and collect signals received from the sky to…

New optical system designed to target and control individual atoms. Using laser light, researchers have developed the most robust method currently known to control individual qubits made of the chemical element barium. The ability to reliably control a qubit is an important achievement for realizing future functional quantum computers. This new method, developed at the University of Waterloo’s Institute for Quantum Computing (IQC), uses a small glass waveguide to separate laser beams and focus them four microns apart, about four-hundredths…

Researchers who created a soft robot that could navigate simple mazes without human or computer direction have now built on that work, creating a “brainless” soft robot that can navigate more complex and dynamic environments. “In our earlier work, we demonstrated that our soft robot was able to twist and turn its way through a very simple obstacle course,” says Jie Yin, co-corresponding author of a paper on the work and an associate professor of mechanical and aerospace engineering at…

The omnipresence of images on the internet on the one hand and the exponential learning curve of AI image generators on the other heighten the risk of image manipulations with malicious intent. CISPA researcher Zheng Li and his colleagues have tested a technique that can partially prevent this. The results of their research have been published in the paper “UnGANable: Defending Against GAN-based Face Manipulation” at the renowned “USENIX Security” conference. A significant feature of contemporary online communication is the…

Harnessing high-dimensional quantum states with QDs and OAM. Generation of nearly deterministic OAM-based entangled states offers a bridge between photonic technologies for quantum advancements. Quantum technology’s future rests on the exploitation of fascinating quantum mechanics concepts — such as high-dimensional quantum states. Think of these as states basic ingredients of quantum information science and quantum tech. To manipulate these states, scientists have turned to light, specifically a property called orbital angular momentum (OAM), which deals with how light twists and…

Using NASA’s Neil Gehrels Swift Observatory, which launched in 2004, scientists have discovered a black hole in a distant galaxy repeatedly nibbling on a Sun-like star. The object heralds a new era of Swift science made possible by a novel method for analyzing data from the satellite’s X-ray Telescope (XRT). “Swift’s hardware, software, and the skills of its international team have enabled it to adapt to new areas of astrophysics over its lifetime,” said Phil Evans, an astrophysicist at the University…

New physics-based self-learning machines could replace the current artificial neural networks and save energy. Artifical intelligence not only affords impressive performance, but also creates significant demand for energy. The more demanding the tasks for which it is trained, the more energy it consumes. Víctor López-Pastor and Florian Marquardt, two scientists at the Max Planck Institute for the Science of Light in Erlangen, Germany, present a method by which artificial intelligence could be trained much more efficiently. Their approach relies on…

Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have detected the magnetic field of a galaxy so far away that its light has taken more than 11 billion years to reach us: we see it as it was when the Universe was just 2.5 billion years old. The result provides astronomers with vital clues about how the magnetic fields of galaxies like our own Milky Way came to be. Lots of astronomical bodies in the Universe have magnetic fields, whether…