CREATE TABLE table_22385461_8 (spacewalkers VARCHAR, end__utc_ VARCHAR)

What are the names of the spacewalkers for end (UTC) October 30, 2007 15:53?
SELECT spacewalkers FROM table_22385461_8 WHERE end__utc_ = "October 30, 2007 15:53"
SELECT "spacewalkers" FROM "table_22385461_8" WHERE "October 30, 2007 15:53" = "end__utc_"