Asteroid Defense and NASA's DART Mission

What is the primary reason larger asteroids are less likely to impact Earth?

• They are captured by the moon's gravity.

• They are destroyed by the sun's radiation.

• They are rarer and less likely to fly close to Earth.

• They are deflected by Earth's magnetic field.

What was the most famous mass extinction event caused by an asteroid?

• The K-Pg event

• The Ordovician-Silurian extinction

• The Triassic-Jurassic extinction

• The Permian-Triassic extinction

Why is the idea of using a nuclear bomb to stop an asteroid considered impractical?

• It would cause the asteroid to speed up.

• It would attract more asteroids.

• It might not be powerful enough and could create radioactive debris.

• It would create a black hole.

What is the main advantage of deflecting an asteroid over destroying it?

• It is faster.

• It requires less technology.

• It is a cleaner and safer method.

• It is cheaper.

What was the primary goal of the DART mission?

• To capture an asteroid.

• To alter the orbit of an asteroid.

• To study the composition of an asteroid.

• To destroy an asteroid.

Which asteroid was targeted by the DART mission?

• Apophis

• Dimorphos

• Eros

• Bennu

What was the result of the DART mission's impact on Dimorphos?

• It destroyed Dimorphos.

• It caused Dimorphos to collide with Didymos.

• It altered Dimorphos' orbit by 32 minutes.

• It had no effect on Dimorphos.

What was the significance of the DART mission's success?

• It demonstrated that nuclear weapons are effective against asteroids.

• It proved that asteroids cannot be redirected.

• It marked the first successful alteration of a planetary body's orbit.

• It showed that asteroids are not a threat to Earth.

What is a potential challenge for future asteroid deflection missions?

• Finding asteroids to target.

• Reducing the time from launch to impact.

• Building larger spacecraft.

• Increasing the speed of asteroids.

What is the next step for improving planetary defense according to the video?

• Reducing the time from launch to impact.

• Using nuclear weapons for deflection.

• Increasing the size of spacecraft.

• Developing faster spacecraft.