There are over 3,500 comets that we know of, so this is just a brief overview of what comets are, and then a list of some Great Comets and a few well-known comets. I also discuss some of the missions that various organizations and nations (i.e., NASA, the Soviet Union, ESA, Japan) have undertaken to examine comets up close and personal.
There are over 3,500 comets that we know of, so this is just a brief overview of what comets are, and then a list of some Great Comets and a few well-known comets. I also discuss some of the missions that various organizations and nations (i.e., NASA, the Soviet Union, ESA, Japan) have undertaken to examine comets up close and personal.