Question: Approximately how often is Halley’s Comet visible from Earth?
Every month
Every other year
Every 15 years
Every 75 years
Answer: The correct answer is Every 75 years.
Question: Approximately how often is Halley’s Comet visible from Earth?
Every month
Every other year
Every 15 years
Every 75 years
Answer: The correct answer is Every 75 years.