The most difficult space riddles A list of space related questions that are most often answered incorrectly Astronomy quiz What is the name of first in history cosmic tourist (astrotourist)?Dennis Tito. Dennis Anthony Tito is an American engineer and multimillionaire, most widely known as the first space tourist to fund his own trip into space. Tito paid a reported $20 million to the Russian Federal Space Agency.very hard 38% Neil Alden ArmstrongNeil Alden Armstrong30%Guy LalibertéGuy Laliberté12%Dennis TitoDennis Tito38%Richard GarriottRichard Garriott18%Created by: Paweł Kołodziejczyk. Statistics based on 2765 answers in 2 languages »tourism riddles » What are the most luminous objects in the universe?Quasars. A quasar is an extremely energetic source of radiation powered by accretion disc around galaxy's central supermassive black hole. Quasars were much more common in the early universe, as all known quasars are extremely distant.hard 40% supergiant starssupergiant stars8%novaenovae3%supernovaesupernovae47%quasarsquasars40%Created by: globalquiz.org. Statistics based on 5909 answers in 2 languages »light riddles » How many times is Jupiter's volume larger than Earth's volume?1,321 times. Jupiter is so big, that it is almost the size of a star. The smallest known red dwarf is just 16 percent larger in diameter than Jupiter.hard 55% 800 times800 times17%1,321 times1,321 times55%50 times50 times9%10,000 times10,000 times17%Created by: K.R.A.C.. Statistics based on 3995 answers in 2 languages »planets riddles » How long did it take Apollo 11 flight to reach the Moon? 3 days. It took 1 minute of flight to reach Mach 1 and 12 minutes to enter Earth's orbit. After one and a half orbits, the third-stage engine pushed the spacecraft onto its three-day long travel to the Moon.average 61% 30 minutes30 minutes4%3 hours3 hours15%3 days3 days61%30 days30 days18%Created by: Hitter smasher. Statistics based on 6774 answers in 2 languages »rockets riddles » Which planet of the solar system has the smallest surface?Mercury has a surface of 75x10^6 km^2, which is equal to 14,7% of Earth' surface.easy 77% MercuryMercury77%VenusVenus9%EarthEarth4%MarsMars9%Created by: lanusienka. Statistics based on 2031 answers in 2 languages »Solar System riddles » Play astronomy quiz and see all the questions.