CREATE TABLE "table1_22385461_8" (
  "num" text,
  "spacecraft" text,
  "spacewalkers" text,
  "start_utc" text,
  "end_utc" text,
  "duration" text
);

Question: What is the end (UTC) if the duration is 6 hours, 55 minutes?
SQL: SELECT "end_utc" FROM "table1_22385461_8" WHERE "duration"='6 hours, 55 minutes';

Question: If the end (UTC) is January 31, 2007 23:09, what is the name of the spacewalkers?
SQL: SELECT "spacewalkers" FROM "table1_22385461_8" WHERE "end_utc"='January 31, 2007 23:09';

Question: What are the names of the spacewalkers for end (UTC) October 30, 2007 15:53?
SQL: SELECT "spacewalkers" FROM "table1_22385461_8" WHERE "end_utc"='October 30, 2007 15:53';