Question category: SOME SCIENCE, SOME NATURE
Question value: 1,600
It was clocked at more than 80,000 mph making an earthly pass at us in April 1986 (Sorry, but we're not that easy!)
Tap or click on "Show Me The Correct Answer!" and you will get the correct answer, or just try to answer without any help.
We are waiting for your answer...
Halley's Comet