Asteroid Alert: The Invisible Threats Above Us

While Earth's atmosphere acts as a natural shield, disintegrating and burning small celestial bodies whose orbits intersect ours, it only partially slows down larger ones. If an asteroid were to strike an urbanized area today, it would cause thousands of casualties and immeasurable damage. How can we prevent such a cataclysm? For over two decades, this question has preoccupied the scientific community. Using increasingly sophisticated optical instruments, astronomers and astrophysicists scan the skies to catalog potentially hazardous asteroids. Directors: Jacques Bedel, Bertrand Loyer Watch more related documentaries in our playlist https://www.youtube.com/playlist?list=PL0ynAwoyg_cB98IJ_PvIJ3hvpGamKf1c4