You're probably aware that Google Earth lets you visit other celestial bodies. But did you know that it allows you to chat with a Martian robot too? When you're navigating Mars, type "Meliza" in the search window. You'll be transported to Meliza's dusty domain, where you can strike up a conversation with the chat bot. Meliza's conversational skills are limited, however. Here's a snippet from an actual chat:
Meliza: Greetings, Earthling! What do you think of Google Mars?
Earthling: It's very nice.
Meliza: This transmission seems to have problems, I don't understand you.
Earthling: I said it's very nice.
Meliza: You say you said it's very nice ... but do you really mean that?