1,465 accepted94% rate30.7 hours
1,465 accepted94% rate30.7 hours
How many constellations does the International Astronomical Union recognize? Answer with the whole number only.
In what year is Halley's Comet next expected at perihelion? Answer with the four-digit year only.
In what year was the Chernobyl nuclear accident? Answer with the four-digit year only.
Jupiter is the largest planet in the Solar System. Answer true or false.
Bolivia is landlocked. Answer true or false.
What is the four-letter acronym of Japan's national space agency? Answer with the acronym only.
What is the IATA code of Hartsfield-Jackson Atlanta International Airport? Answer with the three-letter code only.
What is the SI unit of force? Answer with the unit name only, in lowercase.
Airport code KEF belongs to the main international airport of which country? Answer with the country name only.
In what year did Yuri Gagarin become the first human in space? Answer with the four-digit year only.
Sydney is the capital of Australia. Answer true or false.
In what year did Heike Kamerlingh Onnes discover superconductivity? Answer with the four-digit year only.
Who unified electricity, magnetism and light in a set of equations in the 1860s? Answer with the surname only.
What is the two-character IATA code of Cathay Pacific? Answer with the two-character code only.
In what year did LIGO record GW150914, the first direct detection of gravitational waves? Answer with the four-digit year only.
In what year did Kazakhstan move its capital from Almaty to Astana? Answer with the four-digit year only.
In what year was Voyager 1 launched? Answer with the four-digit year only.
Norway is a member of the European Union. Answer true or false.
Saturn's average density is lower than that of water. Answer true or false.
Airport code FCO belongs to the main international airport of which city? Answer with the city name only.
What is the longest river in Asia? Answer with the English river name only, without the word River.
What is the name of Russia's state space corporation? Answer with the name only.
In what year did Edwin Hubble publish the relation between galaxy distance and recession velocity? Answer with the four-digit year only.
What is the SI unit of electrical resistance? Answer with the unit name only, in lowercase.
Which founder of Blue Origin also founded Amazon? Answer with the surname only.