The science pros at The King of Random show how to make invisible ink at home with simple materials.

Need some gifts for your kids, grandkids, nieces and nephews? More specifically, gifts they won't toss aside as soon as they open them? We've got the goods: Maleden Invisible Ink Pens. These ...

It's a 400-year-old North Carolina mystery that may soon be solved. Historians call it The Lost Colony. It's a group of people who disappeared from Roanoke Island between 1587 and 1590. A map from ...

More than 80 years after the end of World War I, the United States still won't give up the secrets behind a surreptitious tool used by the Allied forces: invisible ink. A public interest group filed a ...

Does it count as vandalism? What if it’s funny? By John Hodgman Jim writes: We recently remodeled our kitchen, and my 10-year-old son wrote, “Are you eating cereal?” on the new countertop in invisible ...