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.....»»
Observation of quasi-equilibrium phase coexistence in supercritical fluids
A long-lasting non-equilibrium phase coexistence in supercritical fluids has been observed by a Korean research team......»»
Quasars as the new cosmic standard candles
In 1929, Edwin Hubble published observations that galaxies' distances and velocities are correlated, with the distances determined using their Cepheid stars. Harvard astronomer Henrietta Swan Leavitt had discovered that a Cepheid star varies periodic.....»»
Never-before-seen radio waves detected from nearby stars and distant galaxies
Scientists have measured thousands of nearby stars and far away galaxies that have never been identified before at radio wavelengths, while studying a galactic body that neighbors our own Milky Way galaxy—the Large Magellanic Cloud......»»
Research examines emission from the blazar TXS 0506+056
Using the Very Energetic Radiation Imaging Telescope Array System (VERITAS), an international team of astronomers has conducted long-term observations of a gamma-ray blazar known as TXS 0506+056. Results of the observational campaign, published Augus.....»»
Google Launches Interactive 3D Periodic Table To Teach Chemistry
Google has launched an interactive and 3D periodic table of chemical elements to help students learn chemistry. Somag News reports: The new functionality is being integrated into the Google Nest Hub device to encourage chemistry students, but it can.....»»
Spektr-RG spacecraft detects its first tidal disruption events
Using the eROSITA telescope onboard the Spektr-RG (SRG) spacecraft, astronomers have detected 13 new tidal disruption events (TDEs). This is the first time when Spektr-RG identifies such events. The discovery is reported in a paper published August 5.....»»
Scientists Spot Warning Signs of Gulf Stream Collapse
An anonymous reader quotes a report from The Guardian: Climate scientists have detected warning signs of the collapse of the Gulf Stream, one of the planet's main potential tipping points. The research found "an almost complete loss of stability over.....»»
Apple to scan all iPhones and iCloud accounts for child abuse images
The neuralMatch system will scan every image before it is uploaded to iCloud in the US using an on-device matching process. If it believes illegal imagery is detected, a team of human reviewers will be alerted. Should child abuse be confirmed, the us.....»»
Harmful algal bloom becomes detectable along western Lake Erie
Nearly a month into bloom season, a harmful algal bloom has been detected along Lake Erie's shores by the National Centers for Coastal Ocean Science......»»
Unraveling mysteries of the ocean from space
Using nearly a decade of satellite data, researchers at Colorado State University have uncovered "milky seas" in a way they've never been seen before—a rare and fascinating oceanic bioluminescent phenomenon detected by a highly sensitive spaceborne.....»»
New bank-fraud malware called Vultur infects thousands of devices
Screen sharing courtesy of VNC mirrors device screens to attacker-controlled servers. Enlarge (credit: Getty Images) Recently detected Android malware, some spread through the Google Play Store, uses a novel way to supercharge the harvesting o.....»»
Spin-sonics: Acoustic wave gets the electrons spinning
Researchers have detected the rolling movement of a nano-acoustic wave predicted by the famous physicist and Nobel prize winner Lord Rayleigh in 1885. This phenomenon can find applications in acoustic quantum technologies or in so-called "phononic" c.....»»
Very-high energy gamma-ray emission detected from blazar TXS 1515–273
An international team of astronomers has carried out multi-wavelength observations of a blazar known as TXS 1515–273; they detected very-high energy (VHE) gamma-ray emission from this source for the first time. The finding is detailed in a paper pu.....»»
On the hunt for "hierarchical" black holes
Black holes, detected by their gravitational wave signal as they collide with other black holes, could be the product of much earlier parent collisions. Such an event has only been hinted at so far, but scientists at the University of Birmingham in t.....»»
Fermi spots a supernova"s "fizzled" gamma-ray burst
On Aug. 26, 2020, NASA's Fermi Gamma-ray Space Telescope detected a pulse of high-energy radiation that had been racing toward Earth for nearly half the present age of the universe. Lasting only about a second, it turned out to be one for the record.....»»
More and more malware is using Discord"s CDN for abuse
A report by Sophos has exposed the scale and variety of malware using the Discord's CDN: "Sophos products detected and blocked, just in the past two months, nearly 140 times the number of detections over the same period in 2020," said authors Sean Ga.....»»
Researchers Hid Malware Inside An AI"s "Neurons" And It Worked Scarily Well
According to a new study, malware can be embedded directly into the artificial neurons that make up machine learning models in a way that keeps them from being detected. The neural network would even be able to continue performing its set tasks norma.....»»
InSight mission: Mars unveiled
Using information obtained from around a dozen earthquakes detected on Mars by the Very Broad Band SEIS seismometer, developed in France, the international team of NASA's InSight mission has unveiled the internal structure of Mars. The three papers p.....»»
Astronomers make first clear detection of a moon-forming disc around an exoplanet
Using the Atacama Large Millimetre/submillimeter Array (ALMA), in which the European Southern Observatory (ESO) is a partner, astronomers have unambiguously detected the presence of a disk around a planet outside our Solar System for the first time......»»
New X-ray pulsar discovered
Using ART-XC and eROSITA telescopes onboard the Spectrum Roentgen Gamma (SRG) mission, an international team of astronomers has detected a new pulsar. The newly found object, designated SRGA J204318.2+443815, turns out to be a long-period, faint X-ra.....»»