In what year did Albert Einstein present the field equations of general relativity? Answer with the four-digit year 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.
In what year did NASA's DART spacecraft impact the asteroid Dimorphos? 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.
In what year did the Boeing 737 make its first flight? Answer with the four-digit year only.
How many sovereign countries in Africa are UN member states? Answer with the whole number 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.
How many days did the Wuhan lockdown last, from 23 January to 8 April 2020? Answer with the whole number only.
What was the US government programme launched in 2020 to speed COVID-19 vaccine development? Answer with its full name, e.g. 'Operation X Y'.
On which day of the week did the UK's 'Clap for our Carers' take place? Answer with the day name only.