If you are looking for an answer to the question What is Artificial Intelligence? and you only have a minute, then here's the definition the Association for the Advancement of Artificial Intelligence offers on its home page: "the scientific understanding of the mechanisms underlying thought and intelligent behavior and their embodiment in machines."
However, if you are fortunate enough to have more than a minute, then please get ready to embark upon an exciting journey exploring AI (but beware, it could last a lifetime) …
A revolutionary NASA Technology Demonstration Mission project called Dragonfly, designed to enable robotic self-assembly of satellites in Earth orbit, has successfully completed its first major ground demonstration. Over time, the system will integrate 3-D printing technology enabling the automated manufacture of new antennae and even replacement reflectors as needed. Vijay Kumar kicks things off with a talk about "research to enhance tactical situational awareness in urban and complex terrain by enabling the autonomous operation of a collaborative ensemble of microsystems." Next, Sean Humbert from UC Boulder talks about develping the fundamental science, tools, and algorithms to enable mobility of heterogeneous teams of autonomous micro-platforms for tactical situational awareness.
I suppose you could decide that this project from MIT's Tangible Media Group isn't really a robot, but I think it's arguably robotic enough (and definitely cool enough) that we can let it slide for this week: We present AnimaStage: a hands-on animated craft platform based on an actuated stage. At the end of every semester, UC Berkeley has a design showcase in Jacobs Hall. My modified Racing Roomba takes on the obstacle course at UC Berkeley's annual student vehicle challenge. If so, they didn't put it on this table: Two modules of EJBot propeller-type climbing robot which use a hybrid actuation system.