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Top 10 Cool Moon Facts
posted: 30 June 2005
06:41 am
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NUMBER 6
Sister moons
The Moon is Earth's only natural satellite.
Right? Maybe not. In 1999, scientists found that a 3-mile- (5-kilometer-) wide
asteroid may be caught in Earth's gravitational grip, thereby becoming a satellite
of our planet.
Cruithne,
as it is called, takes 770 years to complete a horseshoe-shaped orbit around
Earth, the scientists say, and it will remain in a suspended state around Earth
for at least 5,000 years.
Moon Guide:
Step 1 | Step
2 | Step 3
| Moon Map
| Top 10 Cool Facts
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