What are the release dates for Adventures of Sonic Hedgehog - 1993 Close Encounter Kind 1-8?

You seem to be asking about the release dates for a comic series that doesn't exist. There is no known comic series called "Adventures of Sonic Hedgehog - 1993 Close Encounter Kind 1-8".

There is a popular comic series called "Adventures of Sonic the Hedgehog", but it doesn't have a story arc with that title.

If you're looking for information on a specific comic series, please double-check the title and provide more details.