Apollo 11 lands on the Moon

What happened

Neil Armstrong and Buzz Aldrin landed the lunar module Eagle in the Sea of Tranquility while Michael Collins orbited above; roughly 600 million people watched.

Why it matters

The defining achievement of the Space Age — the first human steps on another world.

Sources

• NASA. Apollo 11 (mission page) · Reputable source
• Smithsonian National Air and Space Museum. The Apollo 11 Moon Landing · Reputable source