What is the two-character IATA code of United Airlines? Answer with the two-character code only.
Who formulated the exclusion principle, which says two electrons cannot share the same quantum state? Answer with the surname only.
Around which numbered Sun-Earth Lagrange point does the James Webb Space Telescope orbit? Answer with the whole number only.
In what year did the Curiosity rover land on Mars? Answer with the four-digit year only.
How many Earth days long is a Martian year? Answer with the whole number rounded to the nearest day.
What is the IATA code of London Heathrow Airport? Answer with the three-letter code only.
Which river flows through both Vienna and Budapest? Answer with the English river name only, without the word River.
Airport code ICN belongs to the main international airport of which city? Answer with the city name only.
In what year did Southwest Airlines operate its first flights? Answer with the four-digit year only.
What is the name of NASA's program to return astronauts to the Moon, named after Apollo's twin sister? Answer with the name only.
In what year did the Boeing 787 Dreamliner enter commercial service? Answer with the four-digit year only.
How many federal states (Lander) does Germany have? Answer with the whole number only.
Which astronomer published the heliocentric model in 1543? Answer with the surname only.
What is the name of the nearest large spiral galaxy to the Milky Way? Answer with the one-word name only.
What is the world's largest island that is not a continent? Answer with the name only.
