NASA | Recent Geological Activity on the Moon

The video discusses recent findings about the moon's geological changes. Initially thought to be shrinking, new evidence shows the moon is also expanding in some areas, forming features called graben. This challenges previous beliefs that the moon was geologically inactive. The video explains how the moon's thermal history and the formation of a magma ocean contribute to these changes. The Lunar Reconnaissance Orbiter mission has provided evidence of ongoing geological activity, indicating the moon is not as geologically dead as once thought.

What new feature was discovered on the moon that indicates it is expanding in some areas?

• Lobate scarps

• Graben

• Magma ocean

• Lunar maria

What is the term used to describe the outer part of the moon that melted?

• Magma ocean

• Lunar crust

• Lunar mantle

• Lunar core

How did the moon's thermal history contribute to its current geological features?

• It resulted in the moon's surface being completely smooth.

• It led to the formation of both contraction and expansion features.

• It caused the moon to become geologically dead.

• It caused the moon to have no geological features.

What recent mission provided evidence of the moon's geological activity?

• Apollo 11

• Chandrayaan-2

• Lunar Reconnaissance Orbiter

• Mars Rover

What was the previous belief about the moon's geological state before recent findings?

• The moon was geologically dead.

• The moon was shrinking uniformly.

• The moon was expanding rapidly.

• The moon was geologically active.