Hello how may I help you? Hi, I need to search some things please Sure! What do you need searched? Can you tell me what the biggest recorded cloud of all time was? The biggest recorded cloud of all time. Got it. Would that be the tallest or the widest? The widest, please Okay widest cloud of all time. Specifically on earth or any planet in the solar system? On earch, please Okay! Does it need to be any specific kind of cloud such as cirrus? Any cloud will do Sure! The widest recorded cloud on earth was called Cloudius Maximus and recorded in 2010. Wow, thanks so much! You are very welcome!