Google Docs or these days Google Drive can make collaborating with your colleagues or friends much easier by sharing Google Document, Spreadsheet, Presentation, Pictures or a whole folder.
Let's see if you are familiar with the very basic words of the German language. Go through the intuitive questionnaire and build up your knowledge profile.
The simulator called LOLA was built to study problems related to landing on the lunar surface as part of the Apollo program. You will also see the original video of how the simulation actually looked like.
Antarctica is Earth's southernmost continent, containing the geographic South Pole. What else do you know about this vast ice and snow covered lands except that it can get really cold?
