Hello how may I help you? I need to find information. What kind of information are you looking for? I want to find out what is the biggest recorded cloud of all time. Do you mean the tallest cloud, the widest cloud, or the heaviest cloud? I am looking for widest cloud. I'm sorry I don't have that information. Maybe you'd like to know the brightest cloud? sure, what is the brightest cloud? There are star clouds in the galaxy. Those would be the brightest clouds. thank you for your information. You're welcome1