Observations of coronal holes with the Siberian radio heliographer of Altyntsev et al. – European astronomer radio community

Coronal holes (CH) are reduced brightness regions in solar disk images in extreme ultraviolet (EUV) or soft x -ray emissions corresponding to configurations with open magnetic field lines. Data on their area and depth depth depression are used in solar wind parameter forecasts near Earth. Regular two-dimensional observations of microwave with a 10-20 spatial resolution“…

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Government’s censored science ruined the USSR. Is the following USA? | By Ethan Siegel | Start with an explosion! | February 2025

When governments adopt policies that are antithetical to the truths that are factually established, including scientific truths, it is a recipe for a social disaster. When the voices of those who would speak in the truth in such times are censored, the problem can have even more catastrophic consequences. (Credit: Thomas Hawk/Flickr) With a wave…

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First record of Latrodectus hesperus chamberlin and Ivie, 1935, Western Black Widow (Araneae, Theridiidae), in Slovakia

A kind of alien spider, Latrodectus hesperus Chamberlin and Ivie, 1935, is reported from Slovakia for the first time. The spider was accidentally transported to the north of Slovakia with goods, and was found in Sinantropic habitat. This record confirms the route through which the spiders of the genre Little They import to Europe. Characteristics…

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