Does anyone sort by new?

SELECT * FROM gallery2 WHERE topic_id="1083595" UNION SELECT * FROM gallery2 WHERE topic_id="1071176" UNION SELECT * FROM gallery2 WHERE topic_id="20897" UNION SELECT * FROM gallery2 WHERE topic_id="1400018" UNION SELECT * FROM gallery2 WHERE topic_id="789008" UNION SELECT * FROM gallery2 WHERE topic_id="325066" UNION SELECT * FROM gallery2 WHERE topic_id="751242" UNION SELECT * FROM gallery2 WHERE topic_id="844889" UNION SELECT * FROM gallery2 WHERE topic_id="277050" UNION SELECT * FROM gallery2 WHERE topic_id="52877" UNION SELECT * FROM gallery2 WHERE topic_id="1720418" UNION SELECT * FROM gallery2 WHERE topic_id="1167121" UNION SELECT * FROM gallery2 WHERE topic_id="912346" UNION SELECT * FROM gallery2 WHERE topic_id="1590743" UNION SELECT * FROM gallery2 WHERE topic_id="766449" UNION SELECT * FROM gallery2 WHERE topic_id="1029040"