Q. What bracha if any would you do if you saw an alien?

A. See prior answer. Horav Shlomo Miller’s Shlit”a opinion is that in the unlikely event that you may come in contact with an extraterrestrial creature, no brocho would be recited, since our sages did not institute such a blessing.

Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit”a.