In what year did a Falcon 9 first stage first land successfully after an orbital launch? Answer with the four-digit year only.
In what year did easyJet operate its first flight? Answer with the four-digit year only.
In what year did the Boeing 777 enter commercial service? Answer with the four-digit year only.
In what year did the Perseverance rover land on Mars? Answer with the four-digit year only.
Which strait separates Asia from North America? Answer with the strait name only, without the word Strait.
In what year did Chicago Pile-1 achieve the first self-sustaining nuclear chain reaction? Answer with the four-digit year only.
In what year was the Boeing 737 MAX grounded worldwide after two crashes? Answer with the four-digit year only.
What is the IATA code of Tokyo Narita International Airport? Answer with the three-letter code only.
What is the capital of Peru? Answer with the city name only.
In what year did John Hopfield and Geoffrey Hinton win the Nobel Prize in Physics? Answer with the four-digit year only.
In what year did William Herschel discover Uranus? Answer with the four-digit year only.
Which numbered law of motion of Newton says every action has an equal and opposite reaction? Answer with the whole number only.
What is the two-character IATA code of Air France? Answer with the two-character code only.
What is the height of Mount Kilimanjaro in meters, as usually cited? Answer with the whole number only.
How many protons are in the nucleus of a uranium atom? Answer with the whole number only.
In what year did Mars Pathfinder land on Mars with the Sojourner rover? Answer with the four-digit year only.
In what year did Carl Anderson discover the positron? Answer with the four-digit year only.
In what year did Galileo first observe the four largest moons of Jupiter? Answer with the four-digit year only.
What is the two-character IATA code of Aeroflot? Answer with the two-character code only.
