When Mike is looking for E.T., He finds E.T. partially submerged in a creek. You can clearly see a raccoon to the left of E.T. and the sky shows that it is during the day.
Raccoons are nocturnal creatures.
Here at LWD, we know deep down inside there is other intelligent life in the Universe. At first this was brilliant until they realized that even scanning small portions of the sky produce HUGE amounts of raw data that had to be processed and analyzed to see if an intelligent signal had been received. Since they didn't have the budget to process all this data they asked the world to help them out. A few million desktop PCs is a whole doggy bag of processing power just waiting to do something useful. These work unit files are usually about 348k although they vary slightly in size.