18-th episode of 52-th season "Horizon"

What "Horizon" 18-th episode about

Comet Ison wuill soon make its closest approach to the sun and will be visible in both the evening and morning skies during December if it survives its close encounter with the star.

Episode number: 18

Episode name: "Comet of the Century"

Episode release date: 23 november 2013 at 21:00

Status: aired

Last season episode