mikejuk writes: Today's Google Doodle celebrates the fact that today would have been Douglas Adam's 61st birthday. For any fans of Adam's Hitchhiker's Guide to the Galaxy this isn't to be missed. The interactive doodle takes us aboard the Heart of Gold spaceship where the towel — the essential travel item for any intergalactic voyager sits on the console besides the, also very necessary cup of tea, which is also a reference to a Dirk Gently novel, The Long Dark Teatime of the Soul. There are lots more tributes hidden including Marvin — the real one not the one in the film, a Babel Fish and more. Have fun exploring but make sure you click on the search symbol to find out more about Douglas Adams and his work.