Well, buck up! At least you aren't stuck on Mars!
NASA's Mars exploration rover, Curiosity, landed on the martian surface on August 5, 2012, making that its birthday (since it was technically "born" on Mars, not necessarily built that day). But what's a lonely robot to do once it reaches its first birthday? Sing happy birthday to itself, of course!
Scientists programmed Curiosity to "sing" the famous birthday song using the Sample Analysis on Mars (or SAM), a really fancy, sophisticated chemistry lab sent along on the rover. The SAM is programmed to resonate at different frequencies to filter fine pieces of martian dust through it. Using this tool, they managed to resonate the song that could be audibly heard in the thin Mars atmosphere.
Unfortunately, no cake, presents, or little green men were there to help celebrate.
