Seemingly there is nothing more the Google Earth team likes than a challenge and having used its last two updates to map no less than 200m Galaxies and Ancient Rome it's decided to map Mars, history and the other 70 per cent of our own planet...
Making quite the step up from v4.3, Google Earth 5.0 has firstly enlisted the help of famed US oceanographer Sylvia Earle and set about mapping the entire sea bed including the Mariana Trench (I didn't think we even knew where the bottom of that was?!).
Adding extra swank, Earth 5.0 can also switch to a 'Sea Level' with 3D animated waves which allow the user to dive underneath and check out the topography. Various Wikipedia info, YouTube videos, migratory patterns and scientific expeditions are also scattered all over the seas for your further perusal/education.
Should adding the vast majority of our planet not hold your attention however there is also MARS which Earth 5.0 has mapped in 3D for fulfil your every toxic desert strolling desire.
Still not enough? (boy, you're a tough crowd). Then Google Earth now stores historical imagery meaning that as towns and cities develop users can trace their steps both forward and back. Something that could be rather interesting in places like Beijing given the urban sprawl or conversely Holland given global warming...
Google Earth 5.0 is available now and if you've ever been even remotely interested in human beings, animals, fish, land, sea, global trends, planets, stars or galaxies I'd suggest you head over there and grab it quick smart. Everyone else... care to find the bottom of the Mariana Trench?