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In a selection of episodes of “Chas Speak” about Russian science, Vladimir Surdin, Konstantin Severinov and Georgy Kavanosyan talk about why Roscosmos is failing, when Russia will develop herd immunity, how and why to sort garbage, whether it is necessary to get re-vaccinated, what pollutes Moscow’s air, and what discovery indicates that there was life on Venus. 00:00 "Speak Hour" with astronomer, associate professor of the Physics Department of Moscow State University Vladimir Surdin 57:50 "Speak Hour" with molecular biologist Konstantin Severinov 01:55:33 "Speak Hour" with ecologist Georgy Kavanosyan RTVI News - all the main events in 24/7 format: / myrtvi Politics, art, science, psychology - all in interview format: / @rtvi_usamerica Read and watch the news on the RTVI website: http://www.rtvi.com Also, watch all the most important and interesting things in our telegram channel: https://t.me/rtvimain And subscribe to RTVI in other social networks: Facebook: / myrtvi VKontakte: http://vk.com/rtvi Twitter: / rtvi Instagram: / rtvichannel Odnoklassniki: https://ok.ru/rtvi We also have a telegram channel for the "Such" section with news from the world of music, cinema and the Internet: https://t.me/rtvireal And the public "Takoe" VKontakte: https://vk.com/takoe_rtvi