As of this year, there are more than 5,260 comets known to man, and this number keeps growing and growing. A lot of comets have been seen over the years, but here is a list of some of the biggest, most impressive ones that humanity has witnessed until now.
#1 The Great Comet of 1680
The Great Comet of 1680 had a remarkably long tail and people say it could be seen even during the day. It was discovered on November 14, 1680, by German astronomer Gottfried Kirch.