Follow your curiosity

What discovery has been shared with you?

FACTREE gives you something interesting to discover every day — and something worth talking about together.

Start with one fact. Explore it, go deeper, then follow whichever branch catches your imagination.

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Astronomy

Gravity and Celestial Mechanics

Quick fact

The same gravitational pull that keeps us on Earth also holds the Moon in orbit and influences ocean tides.

Why this is interesting

Have you ever wondered why the moon follows Earth? It’s not magic—it’s gravity, the invisible force that shapes the cosmos.