Young stars ejecting plasma could give us clues into the Sun’s past Kyoto, Japan — Down here on Earth we don’t usually notice, but the Sun is frequently ejecting huge masses of plasma into space. These are called coronal mass ejections (CMEs). They often occur together with sudden brightenings called flares, and sometimes extend far enough to disturb Earth’s magnetosphere, generating space weather phenomena including auroras or geomagnetic storms, and even damaging power grids on occasion. Scientists believe that when…
Physicists in Regensburg and Marburg have tailored the mutual interaction of electrons in an atomically thin solid by simply covering it with a crystal featuring hand-picked lattice dynamics. In a cubic centimeter of a solid there are typically 10²³ electrons. In this massive many-body system, seemingly simple pairwise electron-electron interaction can cause extremely complex correlations and exotic behavior, such as superconductivity. This quantum phenomenon turns a solid into a perfect conductor, which carries dissipationless electric currents. Usually, such coveted behavior…
EU project RENergetic: A residential area in the Belgian city of Ghent, a university campus in Poznan, Poland, a hospital in Milan: at these three locations, the EU project RENergetic is investigating how citizen energy can be successful. The University of Passau is contributing expertise on artificial intelligence and sustainability. With the “Clean Energy Package”, the European Union focuses on the citizens. The package sees them generating the energy they need themselves from renewable sources in small, self-sufficient energy communities….
With the new “LaserNest” desktop lasers, laser and LED specialist Omicron provides higher flexibility and usability of diode lasers within laboratories. The new laser systems developed by Omicron called “LaserNest” are a symbiosis of the proven LuxX+ diode lasers and a desktop housing. This combination is an easy to use plug & play laser light source for science and research. Fast Modulation The innovative high-performance systems are equipped with one laser module with wavelengths from the UV to the near…
The electron is one of the fundamental particles in nature we read about in school. Its behavior holds clues to new ways to store digital data. In a study published in Nano Letters, physicists from Michigan Technological University explore alternative materials to improve capacity and shrink the size of digital data storage technologies. Ranjit Pati, professor of physics at Michigan Tech, led the study and explains the physics behind his team’s new nanowire design. “Thanks to a property called spin,…
The flying observatory SOFIA (Stratospheric Observatory For Infrared Astronomy) has successfully completed its observation flights from Cologne Bonn Airport. On board, amongst others, were scientists from the University of Cologne and the Max Planck Institute for Radio Astronomy in Bonn, who gained new insights into the formation of new stars during the observations. SOFIA is a Boeing 747SP with a 2.7-m-diameter telescope on board, built for astronomical observations from the infrared to the submillimetre wavelength range. From 4 February to…
Layers of ice and rock obviate the need for “habitable zone” and shield life against threats. One of the most profound discoveries in planetary science over the past 25 years is that worlds with oceans beneath layers of rock and ice are common in our solar system. Such worlds include the icy satellites of the giant planets, like Europa, Titan and Enceladus, and distant planets like Pluto. In a report presented at the 52nd annual Lunar and Planetary Science Conference…
The first images of mid-infrared optical waves compressed 1,000 times captured using a highly sensitive scattering-type scanning near-field optical microscope. KAIST researchers and their collaborators at home and abroad have successfully demonstrated a new methodology for direct near-field optical imaging of acoustic graphene plasmon fields. This strategy will provide a breakthrough for the practical applications of acoustic graphene plasmon platforms in next-generation, high-performance, graphene-based optoelectronic devices with enhanced light-matter interactions and lower propagation loss. It was recently demonstrated that ‘graphene…
Magnetic reconnection refers to the reconfiguration of magnetic field geometry. It plays an elemental role in the rapid release of magnetic energy and its conversion to other forms of energy in magnetized plasma systems throughout the universe. Researchers led by Dr. LI Leping from the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) analyzed the evolution of magnetic reconnection and its nearby filament. The result suggested that reconnection is significantly accelerated by the propagating disturbance caused by the…
Robotics researchers are developing exoskeletons and prosthetic legs capable of thinking and moving on their own using sophisticated artificial intelligence (AI) technology. The system combines computer vision and deep-learning AI to mimic how able-bodied people walk by seeing their surroundings and adjusting their movements. “We’re giving robotic legs vision so they can control themselves,” said Brokoslaw Laschowski, a PhD candidate in systems design engineering who leads a University of Waterloo research project called ExoNet. Exoskeletons and prosthetic devices operated by…
Astronomers have painted their best picture yet of an RV Tauri variable, a rare type of stellar binary where two stars – one approaching the end of its life – orbit within a sprawling disk of dust. Their 130-year dataset spans the widest range of light yet collected for one of these systems, from radio to X-rays. “There are only about 300 known RV Tauri variables in the Milky Way galaxy,” said Laura Vega, a recent doctoral recipient at Vanderbilt…
UChicago study finds way that hot, rocky planets in other systems could form and keep atmospheres. An atmosphere is what makes life on Earth’s surface possible, regulating our climate and sheltering us from damaging cosmic rays. But although telescopes have counted a growing number of rocky planets, scientists had thought most of their atmospheres long lost. However, a new study by University of Chicago and Stanford University researchers suggests a mechanism whereby these planets could not only develop atmospheres full…
Looking at the night sky, one’s thoughts might be drawn to astrochemistry. What molecules inhabit the vast spaces between the stars? Would we see the same molecules that surround us here on Earth? Or would some of them be more exotic–something rarely observed or even unknown? Recent research by a multinational team led by Prof. Robert Kołos from the Institute of Physical Chemistry of the Polish Academy of Sciences has revealed an unusual molecule obtained and detected for the first…
The conditions on Earth are ideal for life. Most places on our planet are neither too hot nor too cold and offer liquid water. These and other requirements for life, however, delicately depend on the right composition of the atmosphere. Too little or too much of certain gases – like carbon dioxide – and Earth could become a ball of ice or turn into a pressure cooker. When scientists look for potentially habitable planets, a key component is therefore their…
Quantum technologies are enabled by precise control of the state and interactions of individual quantum objects. Innsbruck physicists have now proposed a way to remotely control the state of individual quantum emitters. The underlying idea, developed by a research group led by Oriol Romero-Isart, is based on chirped light pulses. This novel approach could become a relevant asset in quantum computers and quantum simulation in the future. In order to exploit the properties of quantum physics technologically, quantum objects and…
Robots solving computer games, recognizing human voices, or helping in finding optimal medical treatments: those are only a few astonishing examples of what the field of artificial intelligence has produced in the past years. The ongoing race for better machines has led to the question of how and with what means improvements can be achieved. In parallel, huge recent progress in quantum technologies have confirmed the power of quantum physics, not only for its often peculiar and puzzling theories, but…
On December 6, 2016, a high-energy particle called an electron antineutrino was hurtling through space at nearly the speed of light. Normally, the ghostly particle would zip right through the Earth as if it weren’t even there. But this particle just so happened to smash into an electron deep inside the South Pole’s glacial ice. The collision created a new particle, known as the W- boson. That boson quickly decayed, creating a shower of secondary particles. The whole thing played…