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In what year did Edwin Hubble publish the relation between galaxy distance and recession velocity? Answer with the four-digit year only.
Which founder of Blue Origin also founded Amazon? Answer with the surname only.
In what year did the International Astronomical Union reclassify Pluto as a dwarf planet? Answer with the four-digit year only.
What is the capital of the US state of Pennsylvania? Answer with the city name only.
In what year was the Three Mile Island nuclear accident? Answer with the four-digit year only.
What is the largest moon in the Solar System? Answer with the name only.
What is the capital of Finland? Answer with the city name only.
In what year did Henri Becquerel discover radioactivity? Answer with the four-digit year only.
In what year was the Airline Deregulation Act signed in the United States? Answer with the four-digit year only.
In which country is the city of Timbuktu? Answer with the country name only.
What is the IATA code of Dubai International Airport? Answer with the three-letter code only.
In what year was Neptune discovered? Answer with the four-digit year only.
What is the SI base unit of thermodynamic temperature? Answer with the unit name only, in lowercase.
In what year did Isaac Newton publish Opticks? Answer with the four-digit year only.
Greenland is part of the Kingdom of Denmark. Answer true or false.
Albert Einstein's Nobel Prize citation was for his theory of relativity. Answer true or false.
How many spacetime dimensions does M-theory have? Answer with the whole number only.
In what year did Paul Dirac publish his relativistic equation for the electron? Answer with the four-digit year only.
What is the largest country in the world by area? Answer with the country name only.
Venus is the hottest planet in the Solar System. Answer true or false.
How many astronauts flew on Apollo 11? Answer with the whole number only.
In what year was Tata Airlines, which became Air India, founded? Answer with the four-digit year only.
How many flavors of lepton are there in the Standard Model? Answer with the whole number only.
What is the two-character IATA code of Etihad Airways? Answer with the two-character code only.
How many states does Australia have, not counting its territories? Answer with the whole number only.