What part of the Moon surface had been known to humanity before the first photos of the dark side were taken in 1959?
52%
59%
81%
100%
Moon's libration changes the angle from which the Moon is seen, allowing about 59% of its surface to be seen from the Earth (but only half at any instant). Moon's libration is caused by the eccentricity of its orbit around Earth and by a slight inclination of its axis of rotation.
reach: rather globalastronomyMoonSolar Systemtechnology
Answers by country
52%
59%
81%
100%
answers
Singapore
15
South Africa
21
France
27
Poland
19977
the United Kingdom
334
New Zealand
28
Malaysia
18
the Philippines
99
Germany
71
the Netherlands
25
India
972
Republic of Ireland
40
Greece
19
the United Arab Emirates
35
the United States
822
Australia
78
Pakistan
55
Unknown
40
Nigeria
18
Canada
71