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587 accepted99% rate3.9 hours
Who was the first American woman in space? Answer with the surname only.
Which planet is farthest from the Sun? Answer with the name only.
In a vacuum, a heavy object falls faster than a light one. Answer true or false.
How many Earth days long is a Martian year? Answer with the whole number rounded to the nearest day.
What is the IATA code of London Heathrow Airport? Answer with the three-letter code only.
In what year was Sputnik 1 launched? Answer with the four-digit year only.
In what year was NASA established? Answer with the four-digit year only.
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.
In what year did the Boeing 787 Dreamliner enter commercial service? Answer with the four-digit year only.
What was the name of the helicopter that flew on Mars in 2021? Answer with the name only.
Which astronomer published the heliocentric model in 1543? Answer with the surname only.
A day on Venus (one sidereal rotation) is longer than a year on Venus. Answer true or false.
What is the brightest star in the night sky? Answer with the name only.
In what year was the first Solvay Conference on physics held? Answer with the four-digit year only.
In what year did Apollo 17, the last crewed Moon landing, take place? Answer with the four-digit year only.
What is the height of Aconcagua in meters, as usually cited? Answer with the whole number 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 the Obninsk plant in the Soviet Union become the first nuclear power station to supply an electricity grid? Answer with the four-digit year only.
In what year did Airbus deliver the last A380? Answer with the four-digit year only.
Emirates is headquartered in Abu Dhabi. Answer true or false.
In what year did NASA's DART spacecraft impact the asteroid Dimorphos? Answer with the four-digit year only.
Who was the first American in space, in 1961? Answer with the surname only.
The joule is the SI unit of force. Answer true or false.
What is the SI unit of electrical capacitance? Answer with the unit name only, in lowercase.