much toilet paper. everyone smile, open your eyes, hold onto your belly and let's just give it a whirl. here we go. one, two, three. her hair. one, two, three. her everyone in the gallery is having a belly laugh as well. thank you very much indeed. laughter therapy in action here on bbc world news. many thanks indeed. have a great day and night. we will do our best. that is how you do it. if you are not crying could be laughing. astronomers have found hints of what could be the first planet — ever to be discovered — outside our galaxy. the possible planet was located by nasa here in the messier 51 galaxy — also known as the whirlpool galaxy — some 28 million light years away from earth. nearly 5,000 "exoplanets" — worlds orbiting stars beyond our sun — have been found so far, but all of these