Among the many capabilities that advanced aliens could possess is invisibility.  It's not as far fetched as it sounds.  In fact, human scientists are making progress toward the development of an invisibility cloak right now.  While a final product is st... details >>>

Invisible Cloak Scientists say they are a step closer to developing materials that could render people and objects invisible. This feat is accomplished by using Metamaterials able to reroute light, forcing light around objects like water flowing a... details >>>