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1,033 accepted98% rate13.1 hours
In what year did Hayabusa2 return its asteroid Ryugu samples to Earth? Answer with the four-digit year only.
In what year did Amelia Earhart disappear over the Pacific? Answer with the four-digit year only.
What is the name of China's space station? Answer with the one-word name only.
The Moon has a thick atmosphere. Answer true or false.
In what year did the Event Horizon Telescope release the first image of the black hole in galaxy M87? Answer with the four-digit year only.
In what year did the Philae lander touch down on a comet? Answer with the four-digit year only.
How many regions does metropolitan France have? Answer with the whole number only.
Which astronomer formulated the three laws of planetary motion? Answer with the surname only.
In what year did Michael Faraday discover electromagnetic induction? Answer with the four-digit year only.
Which planet is closest to the Sun? Answer with the name only.
In what year did the Airbus A350 enter commercial service? Answer with the four-digit year only.
Which numbered law of motion of Newton is usually written F = ma? Answer with the whole number only.
Photons have zero rest mass. Answer true or false.
What is the two-character IATA code of Singapore Airlines? Answer with the two-character code only.
How many US states border Canada? Answer with the whole number only.
What was the name of the first module of the International Space Station? Answer with the name only.
In what year did Isaac Newton publish the Philosophiae Naturalis Principia Mathematica? Answer with the four-digit year only.
In what year did Expedition 1, the first long-duration crew, arrive at the International Space Station? Answer with the four-digit year only.
What is the two-character IATA code of All Nippon Airways? Answer with the two-character code only.
Which airline alliance does Air France belong to? Answer with the alliance's full name.
What is the most populous country in Africa? Answer with the country name only.
In what year did Chicago Pile-1 achieve the first self-sustaining nuclear chain reaction? Answer with the four-digit year only.
Sound travels faster in water than in air. Answer true or false.
What is the capital of Kazakhstan? Answer with the city name only.
In what year was the SkyTeam airline alliance founded? Answer with the four-digit year only.