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As the moon's core gradually cools and shrinks, its surface develops creases that create "moonquakes" that can last for hours, as well as landslides, NASA says.

As the moon's core gradually cools and shrinks, its surface develops creases that create "moonquakes" that can last for hours, as well as landslides, NASA says.

As the moon's core gradually cools and shrinks, its surface develops creases that create "moonquakes" that can last for hours, as well as landslides, NASA says.

As the moon's core gradually cools and shrinks, its surface develops creases that create "moonquakes" that can last for hours, as well as landslides, NASA says.

As the moon's core gradually cools and shrinks, its surface develops creases that create "moonquakes" that can last for hours, as well as landslides, NASA says.

As the moon's core gradually cools and shrinks, its surface develops creases that create "moonquakes" that can last for hours, as well as landslides, NASA says.

As the moon's core gradually cools and shrinks, its surface develops creases that create "moonquakes" that can last for hours, as well as landslides, NASA says.

As the moon's core gradually cools and shrinks, its surface develops creases that create "moonquakes" that can last for hours, as well as landslides, NASA says.

A region of the moon at the center of a new international space race is prone to “moonquakes,” potentially posing a threat to future human settlers, a new study says.

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