Chelyabinsk meteorite may fall again: tracking systems do not see dangerous asteroids, warned Novosibirsk State University
Celestial bodies up to 20 meters in size are difficult to detect before entering the atmosphere
«Vega»
Total Lunar Eclipse Will Be Available for Observation on the Night of September 7-8
Anyone can observe the phenomenon with the naked eye
Expert Urges Use of A-50U AWACS Aircraft to Repel Storm Shadow Attacks
The aircraft is designed to detect aerial targets