Russian cosmonauts complete spacewalk, installing X-ray spectrometer on Zvezda module 0 20.12.2024 05:54 Tass.com The instrument will be able to monitor 84% of the celestial sphere and help scientists determine the number of supermassive black holes in the Universe Moscow.media Частные объявления сегодня Rss.plus Все новости за 24 часа
