http://www.newsweek.com/how-see-comet-c-2017-k2-telescope-online-1723799

The comet C/2017 K2 is due to reach its closest point to Earth on Thursday, and it will be possible to see it either online or in-person—provided you have a telescope and dark skies.

The comet has attracted scientists' attention for years since it was first discovered in 2017. At the time, the comet was notable since it was the most distant active comet headed towards the inner solar system that had ever been seen, and was surrounded by a cloud of dust 80,000 miles wide.