New Surprises from the Asteroid Bennu - SciShow News

The video discusses the Osiris Rex mission to asteroid Bennu, highlighting its unique composition, challenges in sample collection, and findings about its age and surface. Bennu's rubble-like structure and diverse rock origins pose challenges, but also offer insights into the early solar system. The asteroid's shape and spin, influenced by the YORP effect, create unusual gravitational dynamics. These preliminary findings promise more discoveries once samples are returned.

What makes Bennu's chemical composition unique compared to meteorites?

• It is more contaminated by Earth's atmosphere.

• It is similar to Earth's crust.

• It has a higher metal content.

• It is more pure and unchanged.

What is the primary reason Bennu is considered a 'rubble pile' asteroid?

• It is made entirely of metal.

• It has a smooth, solid surface.

• It is composed of loosely held rocks.

• It has a high density.

Why is sample collection from Bennu challenging?

• There are many large boulders.

• The temperature is too high.

• The surface is too smooth.

• The gravity is too strong.

How do researchers estimate the age of Bennu's surface?

• By observing its orbit.

• By counting the number of craters.

• By analyzing its chemical composition.

• By measuring its temperature.

What effect is responsible for the increase in Bennu's spin rate?

• The Coriolis effect

• The greenhouse effect

• The YORP effect

• The Doppler effect

How does Bennu's spin affect its gravitational forces?

• It makes gravity stronger at the equator.

• It makes gravity weaker at the poles.

• It has no effect on gravity.

• It makes gravity stronger at the poles.

What unusual phenomenon can occur due to Bennu's spin?

• Rocks can become magnetic.

• Rocks can fly off into space.

• Rocks can melt on the surface.

• Rocks can change color.