Astronomers say they might have found a new ‘minimoon’ orbiting Earth

The video discusses the discovery of a temporary mini moon, 2020 CD3, by the University of Arizona's Steward Observatory. The mini moon, which is 1.9 to 3.5 meters in diameter, has been orbiting Earth for nearly three years and is expected to leave in April. Its light reflection suggests it is similar to carbon-rich asteroids. While other observatories have yet to confirm its presence, it is not uncommon for Earth to capture such temporary satellites. There is a possibility that the mini moon could be recaptured by the moon's gravity and become a natural lunar satellite, a theoretical class of objects that astronomers believe might exist.

What is the name of the possible temporary mini moon discovered by the University of Arizona's Steward Observatory?

• 2022 EF5

• 2021 AB4

• 2019 XY2

• 2020 CD3

What is the typical reason why most temporary natural satellites are not detected?

• They are too far from Earth

• They are too small

• They are too fast

• They are too bright

How long has the mini moon been orbiting Earth before its expected departure?

• Four years

• Three years

• Two years

• One year

What is the potential future of the mini moon according to the study mentioned?

• It will be recaptured by the moon's gravity

• It will crash into Earth

• It will disintegrate in space

• It will become a permanent satellite of Earth

What is the theoretical class of objects that the mini moon might belong to?

• Asteroid belts

• Cometary bodies

• Natural lunar satellites

• Artificial satellites