10 most difficult astronautics riddles A list of ten (out of 17) astronautics related questions that are the most often answered incorrectly Astronautics quiz How long did Neil Armstrong’s first moon walk last?2½ hours. Each of the subsequent five Apollo program landings were allotted gradually longer periods for EVA activities – the crew of Apollo 17, by comparison, spent over 22 hours exploring the lunar surface.very hard 34% 2 minutes2 minutes31%½ hour½ hour30%2½ hours2½ hours34%2 days2 days3%Created by: globalquiz.org. Statistics based on 3787 answers in 2 languages »Moon riddles » This plaque, carried by Pioneer 10 and Pioneer 11 space probes, describes the location of the Sun. What are the points at the ends of the lines?Pulsars. Each of the line includes binary encoding of pulsar frequency, so these can be easily recognized. The hydrogen spin-flip transition frequency is used as the unit of time (Hydrogen particle at the top of the image).very hard 39% planets of the Solar Systemplanets of the Solar System30%galaxiesgalaxies15%quasarsquasars15%pulsarspulsars39%Created by: Sophie Letherman. Statistics based on 5705 answers in 4 languages »astronomy riddles » Who was the first to visit the Sea of Tranquility?Neil Armstrong. Apollo 11 landing site was selected because it had been characterized as relatively flat and smooth by the automated Ranger 8 and Surveyor 5 landers.hard 44% Christopher ColumbusChristopher Columbus13%Ferdinand MagellanFerdinand Magellan28%Abel TasmanAbel Tasman13%Neil ArmstrongNeil Armstrong44%Created by: ex-terminator. Statistics based on 6440 answers in 2 languages »NASA riddles » Who built the first rocket powerful enough to enter outer space?Germans. V2, built by Wernher von Braun, was the first ballistic missile that could reach outer space. It was specifically targeted at London. Nazis also planned submarine-towed launch platforms, that would have allowed a U-boat to launch V-2 missiles against the United States.hard 45% AmericansAmericans17%RussiansRussians31%ChineseChinese5%GermansGermans45%Created by: Kasia. Statistics based on 14764 answers in 2 languages »rockets riddles » Who was the first man to leave the spacecraft in space?Alexey Arkhipovich Leonov was a Soviet astronaut, general major pilot and two-time Hero of the Soviet Union. On 18 March 1965, he became the first human to conduct extra-vehicular activity, exiting the capsule during the Voskhod 2 mission for a 12-minute spacewalk.hard 47% Neil Alden ArmstrongNeil Alden Armstrong19%Edwin Eugene Buzz Aldrin, Jr.Edwin Eugene Buzz Aldrin, Jr.7%Alexey Arkhipovich LeonovAlexey Arkhipovich Leonov47%Yuri Alekseyevich GagarinYuri Alekseyevich Gagarin25%Created by: Paweł Kołodziejczyk. Statistics based on 6047 answers in 2 languages »Soviet Union riddles » Mars colonisation is a hype topic. What is the biggest threat for those wishing to take a part in a journey to Mars?Cosmic rays. The only efficient protection against high energetic cosmic radiation, one we are granted with, is Earth magnetic field. Both during a long flight to Mars and through the stay on the planet, that did not form electromagnetic field, astronauts would be exposed to ionization. hard 48% low temperatureslow temperatures11%lack of oxygenlack of oxygen31%poor gravitypoor gravity9%cosmic rayscosmic rays48%Created by: smyru. Statistics based on 11386 answers in 2 languages »planets riddles » How many people stood on the Moon so far?Twelve. There have been six manned U.S. landings of the Apollo program (between 1969 and 1972) and numerous unmanned landings, though no soft landings have occurred since 1976.hard 49% oneone5%threethree20%sevenseven23%twelvetwelve49%Created by: globalquiz.org. Statistics based on 5149 answers in 2 languages »Moon riddles » On which continent is the main spaceport of the European Space Agency located?In South America. The Guiana Space Centre is a French and European spaceport near Kourou in French Guiana since 1968. The location was chosen as it fulfills the two major geographical requirements of such a site: it is quite close to the equator, so that the spinning earth can impart some extra velocity to the rockets for free when launched eastward, and it has open sea to the east, so that lower stages of rockets and debris from launch failures cannot fall on human habitations.hard 49% in Europein Europe20%in Africain Africa11%in South Americain South America49%in Asiain Asia18%Created by: globalquiz.org. Statistics based on 14701 answers in 2 languages »geography of France riddles » What was the name of spacecraft in which the first three astronauts were killed?Apollo I. Apollo 1 was scheduled to be the first manned mission to the Moon. On January 27, 1967, a cabin fire during a launch pad test at Cape Canaveral killed all three crew members (pictured). The ignition source was never identified, but many lethal design and construction flaws were identified after the accident. The manned phase of the project was delayed for 20 months while those problems were corrected.hard 50% Apollo IApollo I50%Soyuz 7Soyuz 710%ChallengerChallenger25%ColumbiaColumbia14%Created by: globalquiz.org. Statistics based on 3807 answers in 2 languages »NASA riddles » Which animals first returned from orbit?Belka and Strelka. Dogs were accompanied by a gray rabbit, 42 mice, 2 rats and flies. John F. Kennedy wasn't happy with losing the race into space. Nikita Khrushchev added a bit of salt to the wound when he gave Caroline Kennedy one of Strelka's puppies as a gift.hard 52% LaikaLaika30%Belka and StrelkaBelka and Strelka52%EnosEnos8%Able and BakerAble and Baker8%Created by: Kasia. Statistics based on 16718 answers in 2 languages »Cold War riddles » Play astronautics quiz and see all the questions.