Quasi-periodic oscillation detected in blazar PKS 0405-385
By analyzing the historical light curve of blazar PKS 0405-385 from NASA's Fermi spacecraft, Chinese astronomers have detected quasi-periodic oscillation from this source. The discovery, presented in a paper published May 5 on arXiv.org, could shed m.....»»
Heaviest element yet detected in an exoplanet atmosphere
Using the European Southern Observatory's Very Large Telescope (ESO's VLT), astronomers have discovered the heaviest element ever found in an exoplanet atmosphere—barium. They were surprised to discover barium at high altitudes in the atmospheres o.....»»
First sighting of venomous mud adder in South Australia
A venomous snake normally found only in the eastern states has been detected in South Australia for the first time, near the border with NSW and Victoria......»»
How to watch the Jon Stewart show on Apple TV
Apple’s streaming service, Apple TV+, features a periodic topical news discussion show from Jon Stewart. The Problem with Jon Stewart returns for season two beginning this Friday. Here’s how to watch. more… The post How to watch the Jon Stewa.....»»
Seasonal change in Antarctic ice sheet movement observed for first time
Some estimates of Antarctica's total contribution to sea-level rise may be over- or underestimated, after researchers detected a previously unknown source of ice loss variability......»»
TESS discovers an old warm Jupiter-like exoplanet
Using the Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has detected a new old and warm Jupiter-like alien world orbiting a G-dwarf star. The newfound exoplanet, designated TOI-5542 b, is the size of Jupiter—abo.....»»
Some plants can short-circuit the toxic effects of metals. Now scientists are trying to harness their power
At first glance, it's hard to see what gold, iron, lead, arsenic, silver, platinum and tin have in common. A look at the periodic table will clear up the confusion: they are all heavy metals, typically categorized as those metals with an atomic weigh.....»»
Meta shuts down covert influence campaigns it says were run from China and Russia
Facebook parent company Meta announced Tuesday it had detected and shut down two separate networks of fake accounts engaged in covert influence operations run from China and Russia......»»
Nude photos in DMs could be automatically blocked by Instagram users
Meta has confirmed that it is developing a way of allowing users to automatically block nude photos in Instagram DMs. While the nature of the images that can be detected isn’t specified, one hopes it will block unsolicited nude photos to which too.....»»
New binary pulsar detected with CHIME
Using the Canadian Hydrogen Intensity Mapping Experiment (CHIME), astronomers have detected a new radio pulsar in a binary system with a massive non-degenerate companion star. The discovery of the pulsar, which received designation PSR J2108+4516, wa.....»»
Fiber-optic sensing probe: Quasi-3D plasmonic structures on fiber tips
Miniaturized sensors mounted upon optical fibers are widely recognized as an important future solution to instant and point-of-care medical diagnosis and on-site agricultural produce inspection. Plasmonic devices on the flat end-facets of single-mode.....»»
Examining the intricacies of the nitrogen cycle
Nitrogen may not get the same level of attention as its neighbors on the periodic table, carbon and oxygen. But like its neighbors, it's an element we can't live without......»»
Listen to the sound of a meteoroid striking Mars
NASA has shared the sound of a meteoroid crashing into Mars. It's the first time for seismic signals from a meteoroid impact to be detected on another planet......»»
James Webb telescope found a new energy source in space that’s baffling scientists
Scientists have been making a lot of intriguing discoveries with the James Webb space telescope. Webb’s first images gave us a detailed look at the early universe, and we’ve even detected carbon dioxide on an exoplanet with it. Some speculate tha.....»»
High efficiency and low noise amplification of ultrashort pulses by quasi-parametric amplification
Since the earliest demonstration of chirped-pulse amplification (CPA) and optical parametric chirped-pulse amplification (OPCPA), femtosecond lasers have been able to deliver ultrahigh peak powers up to ten-petawatt (PW), thereby paving the way for c.....»»
Frequency-modulated continuous waves controlled by space-time-coding metasurface with nonlinearly periodic phases
Pulse compression is an important technology in modern radar systems and promotes the developments of modern radar technologies towards higher speed and ranging accuracy. The frequency-modulated continuous wave (FMCW) signals, with the advantages of.....»»
Solvent effect on film formation and device performance for 2D Dion-Jacobson perovskite solar cells
Quasi two-dimensional perovskite solar cells (2D PSCs) have received much attention recently due to their unique optoelectronic properties and excellent device stability. Among 2D perovskite, 2D Dion-Jacobson (DJ) perovskite has closer interlayer dis.....»»
Study shows flerovium is the most volatile metal in the periodic table
An international research team gained new insights into the chemical properties of the superheavy element flerovium—element 114—at the accelerator facilities of the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt. The measurements sho.....»»
Modeling antimicrobial use and resistance in Canadian turkey flocks
Antimicrobial resistance in gut bacteria is constantly being detected on poultry farms and in poultry retail products worldwide, including in turkey flocks. Concerningly, surveillance information and studies on the associations between antimicrobial.....»»
New Dehalogenimonas sp. strain is capable of driving dechlorination of diclofenac
Diclofenac (DCF) is a non-steroidal anti-inflammatory drug for human, livestock and poultry. It has become a new pollutant of concern and can be frequently detected in the environment in surface water, groundwater and sediments. So far, however, litt.....»»
Apple Watch running metrics: How to use the new Workout features in watchOS 9
A wide range of valuable new running features comes with watchOS 9. From heart rate zones and stride length, ground contact time to vertical oscillation, and new features like ghost racing your personal best and creating custom workouts, here’s a.....»»