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Which of the following cosmic structures is the largest?

Galaxy

Galaxy filament

Galaxy cluster

Supercluster

Galaxy filaments are the largest known structures in the universe. They group galaxy superclusters, which in turn are formed by cluster composed of galaxies. Hercules–Corona Borealis Great Wall is considered the largest known structure of Universe. It is estimated to span 10 billions light years.

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4

NASA Blueshift wikipedia → Galaxy filament

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Answers by country

Austria

12%

51%

9%

25%

31

the United States

6%

44%

9%

38%

103

Pakistan

0%

41%

25%

33%

12

France

10%

40%

10%

40%

10

the Philippines

23%

38%

0%

38%

13

Switzerland

36%

36%

0%

27%

11

Poland

26%

27%

3%

41%

4606

the United Kingdom

13%

26%

13%

46%

52

Germany

29%

20%

16%

32%

168

India

10%

16%

15%

57%

159

Australia

14%

14%

21%

50%

14

Greece

21%

14%

28%

35%

14

Which astronomical discovery was nicknamed 'Little Green Man'?

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

atmospheric storms

multiple magnetic poles of Jupiter

This unique line of about 20 stars is known as ...

Kemble's cascade

Vasa, a beautiful Swedish galleon, is exposed in one of Stockholm museums. What was her fate?

She sunk just after launching

Polish vessel Aquarius destroyed it

Marked in museum after 70 years of service

She was never launched