Riddle

When was our solar system formed?

Choose an answer

A.1 billion years
B.10 billion years
C.13.8 billion years
D.4.6 billion years ago
Hint: It's a 3-word phrase with 15 letters, starting with "4".

Answer

4.6 billion years ago

Why this is the answer

It formed from a giant interstellar molecular cloud about 4.6 Gya.

This riddle is filed under Science Riddles and rated Medium.

Related Riddles

All Science Riddles