A plasmonic laser is turned on (top) and off (bottom) by switching the magnetization of a nanodot array. The zoomed insets show the magnetic field around a single nanodot. Credit: Aalto University Controlling nanolasers with magnets lays the groundwork for more robust optical signaling. A magnetic field can be used to switch nanolasers on and … Read more
Credit: NASA’s Goddard Space Flight Center Conceptual Image Lab With Webb’s first major structural deployments completed and the observatory’s Deployable Tower Assembly extended, we are taking a step back to learn more about Webb’s sunshield. Observatory Project Scientist Michael McElwain, from NASA’s Goddard Space Flight Center, provided these thoughts: “The Webb telescope and science instruments … Read more
By NASA December 30, 2021 Webb Central Tower deploymemt. Credit: NASA’s Goddard Space Flight Center Conceptual Image Lab Yesterday afternoon, the Webb team successfully extended the observatory’s Deployable Tower Assembly (DTA), creating critical distance between the two halves of the spacecraft. The DTA extended about 48 inches (1.22 meters), putting room between the upper section … Read more
A Toxoplasma-infected human cell moments before it bursts. Credit: WEHI WEHI researchers have discovered how dormant Toxoplasma parasites in the brain manipulate their host cells to ensure their own survival. The researchers showed that the parasites were able to lay dormant and undetected inside neurons (brain cells) and muscle cells by releasing proteins that switch … Read more
For nursing homes, the corona pandemic also means a permanent balancing of safety and quality of life. A simulation tool from TU Graz and CSH Vienna supports the decision for or against individual measures. (Symbolic image of Caritas nursing home). Credit: Reiner Riedler Austrian researchers developed detailed epidemiological model for the spread of the coronavirus … Read more
Credit: RUVID An international scientific group with outstanding Valencian participation has managed to measure for the first time oscillations in the brightness of a neutron star – magnetar – during its most violent moments. In just a tenth of a second, the magnetar released energy equivalent to that produced by the Sun in 100,000 years. … Read more
By European Space Agency (ESA) December 30, 2021 Credit: ESA/Roscosmos/CaSSIS, CC BY-SA 3.0 IGO Like a sprinkle of powdered sugar on a rich red velvet cake, this scene from the ESA/Roscosmos ExoMars Trace Gas Orbiter captures the contrasting colors of bright white water-ice against the rusty red martian soil. This delightful image was taken July … Read more
A simulation of the evolution of the Earth’s interior over time, showing the thermal (bottom), chemical (middle), and thermochemical evolution under the simulated conditions. The bottom of each field is the core-mantle boundary. Ultra-low velocity zones can be seen in the top and middle fields, forming at the toes of the light blue zones. Credit: … Read more
Vascular network (red) in healthy heart tissue (left) and in severe Covid-19 (right). Due to faulty reforming of the network as a result of Covid-19, numerous branches, splits and even loops develop in the capillaries, which can be analyzed mathematically. Credit: M. Reichardt, P. Møller Jensen, T. Salditt Interdisciplinary research team from Göttingen University and … Read more
Natalia Dudareva, Distinguished Professor of Biochemistry in Purdue’s College of Agriculture, stands in her laboratory. Dudareva led a team of researchers that mapped the biosynthetic pathway of an anti-cancer compound found in oregano and thyme, opening the door to potential pharmaceutical use. Credit: Purdue Agricultural Communications photo/Tom Campbell Thyme and oregano possess an anti-cancer compound … Read more