D letter

The concept is an abstract and geometric symbol that represent the D letter. Inside there are a drop water and a spiral.

It have a meaning: Once I heard there is a galaxy in that single drop of water. A whole mega-micro-biosphere that would leave every one of us in awe.

The spiral represent a galaxy (abstractly) The drop water is very easy to see.

That mega biosphere represent all the wide range of categories they will offer.