3 Ways to Save Earth from an Asteroid

The video discusses the potential threat of asteroids to Earth and presents three strategies proposed by NASA to deflect them: slow push methods, kinetic impact, and the nuclear option. Each method has its advantages and challenges, with the nuclear option being the most effective but also the most controversial due to international treaties. The video emphasizes the need for international cooperation to implement these plans if necessary.

What is the primary challenge associated with the slow push strategies for asteroid deflection?

• They can only be used on asteroids close to Earth.

• They require new spacecraft technology and precise rendezvous.

• They are only effective on asteroids larger than 300 meters.

• They involve high costs and international cooperation.

Which method is described as the most mature approach for asteroid deflection?

• Kinetic impact

• Space tug

• Slow push

• Nuclear option

What is a significant drawback of the kinetic impact strategy?

• It is only effective on asteroids larger than 300 meters.

• It may fragment the asteroid into smaller pieces.

• It involves high costs and complex logistics.

• It requires international approval.

Why is the nuclear option considered the most effective for deflecting asteroids?

• It can be executed without precise timing.

• It requires no international cooperation.

• It is the cheapest method available.

• It is 100 times more effective than non-nuclear options.

What is a major legal obstacle to using the nuclear option in space?

• The risk of creating radioactive fragments.

• The high cost of nuclear devices.

• The International Comprehensive Test Ban Treaty.

• The need for specialized nuclear devices.