Image of the Day: Big Blue Marble
After its closest approach to Earth, Rosetta looked back and took a number of images using the OSIRIS Narrow Angle Camera (NAC). This particular image was acquired 15 November 2007 at 03:30 CET.More here.
The image is a colour composite of the NAC Orange, Green and Blue filters.
At the bottom, the continent of Australia can be seen clearly.
Image source: Credits: European Space Agency (ESA)