Korea's centuries old record of mapping the skies has lots to offer for global space studies: expert Yang Hong-jin, manager of the Center of Historical Astronomy at the Korea Astronomy and Space Science Institute, speaks in an interview with The Korea Herald at the Herald Square in Seoul on July 28. (Park Hae-mook/The Korea Herald) Halley's Comet, arguably the most well-known comet in the world, is a short-period comet that comes close enough to the Earth about every 76 years that it can be seen with the naked eye.

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