CREATE TABLE table_21991 ("Spaceport" TEXT, "Launch complex" TEXT, "Launcher" TEXT, "Spacecraft" TEXT, "Flights" TEXT, "Years" TEXT)

What spacecraft was launched from the LC34 launch complex?
SELECT "Spacecraft" FROM table_21991 WHERE "Launch complex" = 'LC34'
SELECT "Spacecraft" FROM "table_21991" WHERE "Launch complex" = 'LC34'