Top 10 Moon facts Selected as the most interesting among Moon related questions in Moon quiz What kind of 'natural disasters' happen on the moon?Moonquakes are produced by tidal forces. Moonquakres are much less common and weaker than earthquakes, although they can last for up to an hour - a significantly longer time than terrestrial earthquakes - because of the absence of water to damp out the seismic vibrations.Created by: life-o-holicSolar System facts » 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.Created by: Hitter smasherrockets facts » 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.Created by: globalquiz.orgastronautics facts » What is larger on the sky: the Moon or the Sun? (by apparent size)Sometimes the Moon, sometimes the Sun. The Moon's orbit is elliptical, and its apparent diameter varies by 10%. This is why both total eclipses (if the Moon is larger) and annular eclipses (if the Sun is larger) happen.Created by: pan Krzyżówkasky facts » Is the Earth–Moon distance constant?It slowly increases. Due to the loss of energy caused by tides, the Earth–Moon distance increases at approximately 38 millimetres per year.Created by: Katarzyna Dąbrowskaastronomy facts » When was the the invisible side of the Moon photographed for the first time?In 1959, the Soviet Luna spacecraft photographed the invisible side of the Moon, proving that the dark patches on the surface are not seas of liquid, but only areas of fine volcanic dust.Created by: Tschukaastronomy facts » Which moons are called "Galilean moons"?Moons of Jupiter. The four largest moons of Jupiter were discovered in 1610 by Galileo Galilei and are today known as Galilean moons. From the end of the 19th century, dozens of much smaller Jovian moons have been discovered and have received the names of lovers or daughters of the Roman god Jupiter or his Greek equivalent Zeus. Created by: Tschukadiscoveries facts » 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.Created by: globalquiz.orgNASA facts » 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.Created by: ex-terminatortechnology facts » In which phase is the Moon during the solar eclipse?New moon. The new moon is the first phase of the Moon, when its orbit is not seen from the Earth; it is at this moment when the Moon and the Sun have the same ecliptical longitude. The Moon is not visible at this time except when it is seen in silhouette during a solar eclipse when it is illuminated by earthshine.Created by: bordello się tu zrobiłłoastronomy facts » Play Moon quiz and see all the questions.