Imaging tool under development exposes concealed detonators—and their charge

Sandia National Laboratories researchers, from left, Yuan-Yu Jau, George Burns, Justin Christensen and Ed Bielejec plan to test a future neutron generator for an electric-field imaging system at Sandia’s Ion Beam Laboratory. Credit: Randy Montoya Behold the neutron, the middle child of subatomic particles. At times overshadowed by its electrically charged siblings the proton and … Read more

Physics students take first-year project to peer-reviewed paper

Impression of Cassini at Enceladus. Credit: Imperial College London Two Physics students have turned their first-year project using real data from the Cassini mission into a peer-reviewed paper. Zeqi Zhang and Xinni Wu, along with their supervisor, Dr. Ravindra Desai, and Dr. Charles Lue from the Swedish Institute of Space Physics, have published their study … Read more

Microstructure morphology fine-tuning of active layer film boosts organic solar cell efficiency

Graphical abstract. Credit: Joule (2021). DOI: 10.1016/j.joule.2021.06.017 The power conversion efficiency (PCE) of organic solar cells (OSCs) are demonstrated to be improved via the microstructure morphology fine-tuning of active layer films. Thanks to the appealing advantages like light weight, mechanical flexibility and roll-to-roll processability, OSCs have drawn increasing attention. As a promising power source for … Read more

‘Gallium doping’ is providing a solution

Credit: Shutterstock Solar power is already the cheapest form of electricity generation, and its cost will continue to fall as more improvements emerge in the technology and its global production. Now, new research is exploring what could be another major turning point in solar cell manufacturing. In Australia, more than two million rooftops have solar … Read more

Italian astronomers inspect galaxy Markarian 509 with ALMA

This image from the NASA/ESA Hubble Space Telescope shows the galaxy Markarian 509. Credit: NASA, ESA, J. Kriss (STScI) and J. de Plaa (SRON) Using the Atacama Large Millimeter/submillimeter Array (ALMA), Italian astronomers have investigated an active galaxy known as Markarian 509. Results of the study, presented in a paper published July 14 on arXiv.org, … Read more

Survey finds bullying and harassment systemic in astronomy and geophysics

Credit: Unsplash/CC0 Public Domain Results from a new survey of astronomers and geophysicists show that these sciences have a systemic bullying problem; one that is disproportionately worse for women and those from minority groups. In a survey carried out by the Royal Astronomical Society (RAS) last year of over 650 people in the field, 44% … Read more

Unravelling the knotty problem of the sun’s activity

Simulation of twisted magnetic field lines emerging through the photosphere, the visible surface of the Sun. Credit: MacTaggart et al. A new approach to analyzing the development of magnetic tangles on the Sun has led to a breakthrough in a longstanding debate about how solar energy is injected into the solar atmosphere before being released … Read more

Perseverance Mars Rover to acquire first sample

A light-colored “paver stone” like the ones seen in this mosaic will be the likely target for first sampling by the Perseverance rover. The image was taken on July 8, 2021 in the “Cratered Floor Fractured Rough” geologic unit at Jezero Crater. Credit: NASA/JPL-Caltech/ASU/MSSS NASA is making final preparations for its Perseverance Mars rover to … Read more