Astronomy Day (Fall)
Astronomy Day is celebrated twice in a year, in spring and in fall. In the fall, it is scheduled to occur on the Saturday between mid-September and mid-October closest to the first quarter Moon.
This tartan was designed for Charles Cockell, Professor of Astrobiology, at Edinburgh University.
The tartan colours were chosen specifically for the field of Astrobiology, the branch of biology concerned with the study of life on earth and in space.
The black background represents space; the blue squares represent oases of water on potentially habitable worlds, thought to be a necessity for life; green represents life - thin lines tenuously threaded through the Universe and intersecting in water with three green lines representing planet Earth, the third planet from the Sun, the only planet currently known to support life; the red lines represent Mars, a planet at the edge of habitability; the yellow line represents our Sun, the only star at the current time known to support a life-bearing planet; the white line represents the colour of the distant stars as seen from the surface of any planet in the Universe - other planets that might support life.
For the latest news and research from the UK Centre of Astrobiology in Edinburgh, click the artist's conception of astrobiological components.