Space exploration missions by NASA. Play NASA Missions trivia solo to sharpen your knowledge, or challenge a friend head-to-head in Trivia Tango — every question comes with an explanation so you learn as you play. Questions span every level, from easy warm-ups to expert-level stumpers, so there's a real challenge here however much you already know.
A mix of easy, medium and hard — questions run from warm-up to expert, so there's a real challenge at every level. Think you know the answers? Play to find out.
This astronaut became the first human to walk on the Moon on July 20, 1969.
Difficulty: EasyThis Apollo 12 astronaut made history when struck by lightning twice during launch, yet the mission continued successfully.
Difficulty: MediumThis docking adapter allowed Apollo and Soyuz spacecraft to connect in 1975 despite using incompatible atmospheres.
Difficulty: HardThis U.S. government agency was founded in 1958 to lead America's space exploration efforts.
Difficulty: EasyThis physicist discovered radiation belts around Earth that bear his name, using data from the first U.S. satellite.
Difficulty: MediumThis method, pioneered on Gemini 6 and 7, proved two spacecraft could find each other in orbit without ground radar guidance.
Difficulty: HardThis Soviet satellite, launched in 1957, was the first artificial object to orbit Earth.
Difficulty: EasyThis first U.S. satellite launched in January 1958 as America's response to Sputnik and discovered the Van Allen belts.
Difficulty: Medium