A Twitter user who goes by "Ty" recently received a mysterious voicemail composed with the NATO phonetic alphabet message, and it spelled out "Danger SOS it is dire for you to evacuate be cautious they are not human SOS danger SOS." What happened before receiving the message? Well, apparently someone was spotted outside his house taking photographs. Click here for the first image in today's viral picture gallery. Continue reading for the five most popular viral videos today, including one of molten salt reacting with dry ice.