go to takeadvil.com. take action. take advil. here are some stories to watch today on abc news. nasa releases more images of the planet mercury today. the first picture sent from a space probe in orbit shows terrain never seen before. the orca whale that killed a seaworld trainer last year in orlando appears in public today for the first time since the drowning. seaworld is fighting federal complaints about trainer safety. and prince harry is joining wounded war veterans for a charity hike to the north pole. he'll train for a few days before embarking on that trek. >> cold trek. >> very cold. am as cold as it is in here. >> turned down the ac. according to the official "world news now" royal wedding clock the big day is now a month away. >> just a month. >> thank you, lord. >> yes, hang in there. buckingham palace is shifting into high gear, also including