Which of Saturn's moons has such distinctive equatorial ridge?

Dione

Rhea

Enceladus

Iapetus

The ridge is 13 km high, 20 km wide and 1300 km long. Its origin is not known, but considering the amount of craters, it's safe to assume that it is a very old geological feature.

Ninjai

Paul T. wikipedia → Iapetus (moon)

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Answers by country

the Philippines

10%

20%

70%

France

18%

54%

Greece

36%

45%

Australia

13%

39%

34%

Austria

10%

37%

25%

27%

Poland

13%

27%

33%

25%

3521

the United States

32%

37%

23%

106

India

39%

30%

21%

140

the United Kingdom

19%

27%

34%

19%

Germany

21%

30%

31%

16%

178

Switzerland

29%

54%

12%

This is the aurora of Jupiter. What are the visible bright spots caused by?

volcanic peaks

atmospheric storms

Jupiter moons

multiple magnetic poles of Jupiter

Who first described the heliocentric model of the Sun and planets? ( with the Sun in the center)

What part of the Moon surface had been known to humanity before the first photos of the dark side were taken in 1959?

Which of Saturn's moons has such distinctive equatorial ridge?

Answers by country

This is the aurora of Jupiter. What are the visible bright spots caused by?

Who first described the heliocentric model of the Sun and planets? ( with the Sun in the center)

What part of the Moon surface had been known to humanity before the first photos of the dark side were taken in 1959?

What is the next digit in Pi after 3.14?