NASA's InSight lander on Mars has detected about 450 quakes. They suggest the planet is less Earth-like than we thought.

· NASA's InSight lander has detected about 450 Mars quakes since it picked up its first one in April 2019.
· Researchers were surprised to find that the quakes are similar to quakes on the moon, which suggests Mars' crust is more dry and broken up than they anticipated ⁠— probably because of asteroid impacts.
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