Google has just announced google earth 4.2 and new to this version is the Skies. Several Sky layers are listed on the left-hand side, including Constellations, Backyard Astronomy, Hubble Showcase, The Moon, The Planets, User’s Guide to Galaxies and Life of a Star. The Sky layers are composed of over 1 million photographs from various scientific and academic sources.
Another new feature in Google Earth is the addition of super-high resolution photo content, which you can see by adding the layer Primary Database -> Featured Content -> Gigapxl Photos. Unlike Google Street View, these photos however are only available for a few select places (like buildings), so there’s not a lot of random fun stuff to be found.
So go download your free copy, install and hit “Switch between sky and earth”. This is absolutely fantastic and serves as a great resource for research and education. Thanks Google….You guys ROCK!!!