On Friday, September 2, 2022, at the age of 93, American astronomer Frank Drake, who became one of the pioneers of the search for radio signals from extraterrestrial civilizations, died. He is also one of the creators of the records for the Pioneer and Voyager probes and the Arecibo radio message, according to the SETI… Continue reading Astronomer Frank Drake dies
British climatologists studied the distribution of smoke in the stratosphere after bushfires in Australia in 2019–2020. They found that black carbon particles in the smoke increased the average temperature in the lower stratosphere by 0.7 degrees worldwide, with temperatures rising by three degrees over Australia. Additionally, the reaction of smoke and ozone has caused the… Continue reading Bushfire smoke raised temperatures in Australia by three degrees
Chemists from Germany, the USA and Denmark have found that substances secreted by human skin lead to the formation of an oxidative field around it. Scientists placed four people in a sealed mock-up office and began ozonizing the air to a level close to the maximum permissible concentrations. The experiment showed that ozone interacts with… Continue reading Ozonation of the air caused the skin to create an oxidative field around a person
The Voyager 1 team solved the problem of sending anomalous telemetry that had been coming from the probe for several months. It turned out that the cause of the failure was a faulty on-board computer, which was mistakenly assigned the operation of sending data. The problem has now been fixed, according to NASA's website. Voyagers… Continue reading NASA has fixed a glitch in Voyager 1's telemetry sending system.
The initial height of the tsunami caused by the eruption of the Hunga Tonga Hunga Ha'apai volcano on January 15, 2022 was 90 meters. These conclusions were reached by researchers from the UK, New Zealand, Croatia and Japan, who analyzed changes in atmospheric pressure and sea level and created nine models of a volcanic tsunami.… Continue reading The January eruption of the Tonga volcano triggered a 90 meter high tsunami.
Paleogeneticists analyzed 777 ancient genomes from Anatolia, southeastern Europe and western Asia, spanning the last ten thousand years of human history. Focusing on the Palaeometallic Age, scientists found that there was no gene flow from Europe to Anatolia during the entire Bronze Age. In addition, they clarified the influence of representatives of the Yamnaya culture… Continue reading Analysis of 777 ancient genomes clarifies the origins of paleometal populations
European physicists have reported the observation of characteristic doublets in the spectra of electrons knocked out of helium atoms by coherent light in the extreme ultraviolet range. The result obtained indicates the occurrence of Rabi oscillations in atoms. The shape and position of the doublets could be theoretically reproduced only after taking into account the… Continue reading Physicists saw Rabi oscillations using extreme ultraviolet light
Planetologists presented the results of a search for presolar grains in soil samples from the Ryugu asteroid and two carbonaceous chondrite meteorites. They discovered several dozen grains with an anomalous isotopic composition of oxygen, carbon and silicon, which were formed before the birth of the Solar System, and also confirmed the idea of a connection… Continue reading Planetologists have found presolar grains in the soil of the Ryugu asteroid
Archaeologists have excavated in Khakassia an unusual burial of an infant of the Okunev culture, presumably committed in the 24th century BC. Along with the remains, they found a marble ball – an attribute of men who had a special social status, as well as the oldest solid bronze dagger in Central Asia. The most… Continue reading Archaeologists have excavated the burial of a baby of the Okunev culture with a dagger and a marble ball in Khakassia
Chemists from Japan for the first time synthesized a fully fluorinated analogue of cubane and reduced it to a radical anion. According to computer calculations and EPR spectroscopy results, the electron density in the anion was concentrated inside the cubic core of the molecule. The study was published in Science. Organic compounds in which carbon… Continue reading The electron entered the cavity of octafluorocubane