How many crewed Apollo missions successfully landed astronauts on the Moon?
Answer6 landings
Six separate Apollo missions successfully touched down on the lunar surface between 1969 and 1972.
Source: Wikipedia: Apollo program (2025) en.wikipedia.org
Science · Facts & sources
Mission facts & stats
4 sourced facts about space missions and space exploration, each with the context behind the number. 4 more are in today's round and appear here after it closes.
The basics
Going deeper
In total, how many people have ever walked on the Moon?
Answer12 people
Only twelve human beings, all part of the Apollo program, have ever set foot on the Moon.
Source: Wikipedia: NASA (2025) en.wikipedia.org
In what year did NASA launch Voyager 1, still the most distant human-made object in space?
Answer1977
Voyager 1 launched in 1977 and, decades later, is still sending back data from interstellar space.
Source: Wikipedia: Voyager 1 (2025) en.wikipedia.org
Expert level
Adjusted for inflation to 2020 dollars, about how much did the Apollo program cost in total?
Answerabout $257 billion
The Apollo program was the largest peacetime research and development project in history.
Source: Wikipedia: Apollo program (2020) en.wikipedia.org
Think you'd have guessed them?Today's round is four stats like these plus one opinion poll. Your streak and level follow you to every site.Play today's round