Astronomy4 min
The Moon as a time capsule
With no weather and little geological activity, the Moon preserves craters billions of years old.
Sample article — placeholder editorial content for COSMOS Phase 1.
The leading theory for the Moon’s origin is a giant impact between the early Earth and a Mars-sized body.
Because the Moon lacks a substantial atmosphere and active plate tectonics, its surface records an extensive history of impacts.
Lunar samples returned to Earth remain key to dating surfaces across the Solar System.
