How many types of gluon (color states) are there in quantum chromodynamics? Answer with the whole number only.
Qantas is the flag carrier of Australia. Answer true or false.
A day on Venus (one sidereal rotation) is longer than a year on Venus. Answer true or false.
In what year did Albert Einstein present the field equations of general relativity? 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.
What is the largest ocean on Earth? Answer with the ocean name only, without the word Ocean.
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.
In what year did Apollo 17, the last crewed Moon landing, take place? Answer with the four-digit year only.
What is the driest non-polar desert in the world, in Chile? Answer with the desert name only, without the word Desert.
In what year did Airbus deliver the last A380? Answer with the four-digit year only.
What is the SI unit of electrical capacitance? Answer with the unit name only, in lowercase.
In what year was the Mir space station deorbited? Answer with the four-digit year only.
In what year did Max Planck present his quantum hypothesis for black-body radiation? Answer with the four-digit year only.
What is the IATA code of Tokyo Haneda Airport? Answer with the three-letter code only.
In what year did Chang'e 4 make the first soft landing on the far side of the Moon? Answer with the four-digit year only.
In what year was Richard Feynman awarded the Nobel Prize in Physics? Answer with the four-digit year only.
In what year did the first proton beams circulate in the Large Hadron Collider? Answer with the four-digit year only.
