In what year did US Airways Flight 1549 land on the Hudson River? Answer with the four-digit year only.
In what year was the Nobel Prize in Physics awarded for the invention of efficient blue LEDs? Answer with the four-digit year only.
Which sea lies between Italy and the Balkan Peninsula? Answer with the sea name only, without the word Sea.
How many meters is one astronomical unit, as defined exactly by the IAU in 2012? Answer with the whole number only.
KLM is the flag carrier of Belgium. Answer true or false.
How many letters long is an ICAO airline designator? Answer with the whole number only.
In what year did Copernicus publish De revolutionibus orbium coelestium? 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 Stephen Hawking publish his prediction that black holes emit radiation, in Nature? Answer with the four-digit year only.
How many dwarf planets does the International Astronomical Union officially recognize? Answer with the whole number only.
In what year did Alaska Air Group complete its acquisition of Hawaiian Airlines? Answer with the four-digit year only.
In what year was Zarya, the first module of the International Space Station, launched? Answer with the four-digit year only.
What is the two-character IATA code of KLM? Answer with the two-character code only.
What is the IATA code of Paris Charles de Gaulle Airport? Answer with the three-letter code only.
In what year did Niels Bohr publish his model of the hydrogen atom? Answer with the four-digit year only.
In which country is the temple complex of Angkor Wat? Answer with the country name only.
What is the flag carrier airline of the Netherlands? Answer with the airline name only.
In what year did Theodore Maiman demonstrate the first working laser? Answer with the four-digit year only.
