Spray-painting asteroids could prevent Earth collision

The video explains how altering the way an asteroid reflects sunlight can change its orbit due to the Yarkovsky effect, which acts like a rocket thruster. By painting the asteroid, its path can be altered to prevent a collision with Earth. Painting it white reduces the effect, while black increases it.

What is the primary factor that alters an asteroid's orbit according to the first section?

• The way it reflects the sun's radiation

• The asteroid's speed

• The asteroid's distance from Earth

• The asteroid's size

How does the Yarkovsky effect influence an asteroid's movement?

• It decreases the asteroid's mass

• It changes the asteroid's shape

• It acts like a rocket thruster

• It increases the asteroid's speed

What is one method mentioned to alter the Yarkovsky effect on an asteroid?

• Painting the asteroid

• Changing the asteroid's speed

• Increasing the asteroid's mass

• Moving the asteroid closer to the sun

What effect does painting an asteroid white have?

• It decreases the Yarkovsky effect

• It has no effect on the Yarkovsky effect

• It increases the Yarkovsky effect

• It changes the asteroid's orbit immediately

Why might an asteroid be given a negative charge?

• To make it repel solar wind

• To make it stick to the asteroid

• To increase its speed

• To change its color