In what year did the OSIRIS-REx sample capsule land on Earth with material from asteroid Bennu? Answer with the four-digit year only.
How many kilometers long is each arm of a LIGO interferometer? Answer with the whole number only.
Who founded Virgin Atlantic? Answer with the surname only.
In what year was the Kepler space telescope launched? Answer with the four-digit year only.
In what year did the Ingenuity helicopter make the first powered flight on Mars? Answer with the four-digit year only.
In what year did Johannes Kepler publish Astronomia nova? Answer with the four-digit year only.
At which cosmodrome in Kazakhstan did Gagarin's flight launch? Answer with the name only.
What is the capital of Iran? Answer with the city name only.
How many Apollo missions landed astronauts on the Moon? Answer with the whole number only.
In which country is Angel Falls, the world's highest uninterrupted waterfall? Answer with the country name only.
What is the largest moon of Saturn? Answer with the name only.
In what year did the Tata Group take back control of Air India from the government? Answer with the four-digit year only.
In what year is Halley's Comet next expected at perihelion? Answer with the four-digit year only.
In what year did the Boeing 747 enter commercial service? Answer with the four-digit year only.
Bolivia is landlocked. Answer true or false.
In what year did Heike Kamerlingh Onnes discover superconductivity? Answer with the four-digit year only.
In what year did Alexei Leonov perform the first spacewalk? Answer with the four-digit year only.
