What cosmic disasters threaten earth?

The video discusses the potential dangers posed by cosmic events, particularly asteroid impacts, to life on Earth. It highlights the frequency and scale of these events, using historical examples like the 1908 Siberia explosion. The video emphasizes that while these events are rare, they are preventable through mapping and intervention strategies, such as using rockets to alter asteroid paths. The importance of proactive measures to avoid catastrophic impacts is underscored, contrasting our capabilities with those of the dinosaurs.

How often do significant asteroid impacts occur according to the text?

What is the role of telescopes in preventing asteroid impacts?