Stellarium: open source planetarium on your computer

Are you fond of astronomy, or just curious about the world of stars and you will attract?
Then surely you'll like Stellarium, an open source software can turn your computer into a real planetary varves can enjoy an authentic experience of astronomical exploration in three dimensions!

Send messages encrypted with Enigma

"Enigma" the famous electromechanical machine coding and decoding messages, long used by the Germans during World War II, is now available to virtually all thanks to a swf file published enigmatico.de make explicit its operation in a visual way and that allows you to encrypt and decrypt your text messages. [...]

Google Mars

In collaboration with NASA researchers Noel Gorelick and Michael Weiss-Malik from Arizona State University and using the combination of the Google Maps technology and the most 'detailed maps of Mars ever made the team at Google has made Google Mars.

The date of March 13, chosen for the launch of Google Mars does not [...]