Persistent discrepancies: For decades, astrophysicists have been puzzling over why some spectral lines measured in X-ray spectra look different than they should in theory. Now, for the first time, an experiment has succeeded in generating the theoretically calculated spectral values in practice. This not only solves the mystery of the discrepancies in these highly excited iron lines. The new findings also help X-ray astronomy in researching cosmic plasmas. The excited and ionized atoms of extremely hot cosmic gases emit X-rays,...
Home pageknowledgeCreated: 05/13/2022 04:54 amOf: Tanya BannerSplitAt the center of the Milky Way lurks the supermassive black hole Sagittarius A*. The Event Horizon Telescope presents the first photo of it - a sensation.The Event Horizon Telescope took the first photo of a black hole in 2019 - an astronomical sensation at the time.The researchers have now followed suit and the first image from black hole in the center of the Milky Way - Sagittarius A*.Sgr A* is about 26,000 light-years...
LREM deputy Coralie Dubost was singled out for her humane management of certain collaborators and the expensive use of her advances for mandate expenses, which she disputes, according to a Friday investigation by Mediapart based in particular on a report of which AFP has had knowledge.According to this report from a human resources firm sent in the spring of 2021 to the ethics officer of the National Assembly, former collaborators of Coralie Dubost accuse her of having imposed on them...
We know today that space is not free from all pollution and that nearly 10,000 tons of space debris are wandering above our heads. A problem that space agencies are now looking into. But if they have their eyes turned to the sky, the climate emergency now also requires them to have their feet on the ground and to reduce the carbon footprint of astronomy research infrastructures to meet the commitments of the Paris Agreement on climate change.And they are...
Newcastle United probably with an "astronomical offer" for Ousmane Dembele from FC Barcelona Rumors of a move from Ousmane Dembele to the Magpies are growing. There should now be a high offer from the island for the ex-Dortmund. The newly rich English first division club Newcastle United is apparently intensifying its efforts to attack attacker Ousmane Dembele (24) from FC Barcelona. Like the one close to Barca Mundo Deportivo writes, the Magpies had made the winger a lucrative offer. There...
A stratospheric sale, in every sense of the word: one of the preparatory manuscripts for Albert Einstein's theory of general relativity, estimated between two and three million euros, will be auctioned this Tuesday in Paris. “This is undoubtedly the most valuable Einstein manuscript ever offered for auction,” Judge Christie's in a press release, where the sale for Aguttes will take place. The document is an autograph manuscript of 54 pages written in 1913 and 1914, in Zurich (Switzerland), by the...
[ad_1] What will the James Webb Telescope ? Pierre Ferruit, who has been working on this mission for twenty years on behalf of European Space Agency (ESA), do not know yet. But the future space telescope, presented as the big brother of 'Hubble, represents "such a leap forward" for astronomy "that there will inevitably be discoveries and that the most beautiful are those that we do not yet imagine", he assures us. No wonder then that ESA, a stakeholder in...
