What object collided with Earth according to giant impact hypothesis?

a comet
a moon
an asteroid
a planet
Ac­cord­ing to the giant impact hy­poth­e­sis Earth once collided with a planet of Mars size usually referred to as Theia, a titaness of Greek mythol­o­gy, mother of Selene - Moon goddess, which is to reflect the believe the col­li­sion was an origin of the Moon.

Answers distribution

a comet
a moon
an asteroid
a planet
answers
flagSwitzerland
0%
9%
4%
86%
22
flagFinland
10%
10%
0%
80%
10
flagthe United Arab Emirates
0%
10%
10%
80%
10
flagGermany
8%
5%
32%
53%
86
flagthe United States
5%
7%
35%
51%
68
flagPoland
9%
8%
33%
47%
6301
flagIndia
11%
8%
32%
47%
68
flagUnknown
10%
10%
34%
44%
688
flagthe United Kingdom
9%
5%
42%
42%
133
flagNorway
7%
0%
50%
42%
14
flagItaly
40%
0%
20%
40%
10
flagSweden
18%
18%
31%
31%
16
flagRepublic of Ireland
25%
8%
41%
25%
12
flagAustralia
9%
18%
54%
18%
11
flagthe Netherlands
22%
4%
63%
9%
22

Gender

men45%
women33%
a comet
9%
11%
a moon
9%
9%
an asteroid
35%
46%
a planet
45%
33%

Language versions

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What object collided with Earth according to giant impact hypothesis?
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Author: smyru
Illustration: Carolina Ödman
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