Which mission first landed people on the Moon?
AnswerApollo 11
Apollo 11 made the first crewed Moon landing; Apollo 13 had to return to Earth without landing.
Science · Facts & stats
Moon facts & stats
7 fact-checked facts about the Moon, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
In what year did humans first walk on the Moon?
Answer1969
Neil Armstrong and Buzz Aldrin walked on the Moon on July 20, 1969.
Going deeper
Why do we always see the same side of the Moon from Earth?
AnswerIt spins exactly once per orbit (tidal locking)
Tidal locking matches the Moon's spin to its orbit; the far side gets sunlight too.
About how far is the Moon from Earth on average?
AnswerAbout 384,000 km
The average Earth-Moon distance is about 384,400 km; 150 million km is the distance to the Sun.
Roughly how strong is gravity on the Moon compared with Earth?
AnswerAbout one-sixth
Surface gravity on the Moon is about 16.5% of Earth's, roughly one-sixth.
Expert level
What is the leading scientific explanation for how the Moon formed?
AnswerA giant impact between early Earth and a Mars-sized body
The giant-impact hypothesis says debris from a huge collision gathered to form the Moon.
What causes a lunar eclipse?
AnswerEarth's shadow falling on the Moon
A lunar eclipse happens at full moon when Earth lines up between the Sun and Moon.
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