HardSpace
How long for one orbit around the galactic center?
Riddle
How long for one orbit around the galactic center?
Choose an answer
A.1 million years
B.50 million years
C.1 billion years
D.230 million years
Hint: It's a 2-word phrase with 12 letters, starting with "2".
Answer
230 million years
Why this is the answer
This vast period of time is often called a 'Cosmic Year'.
This riddle is filed under Science Riddles and rated Hard.