Got around to creating a logo for CELSS.net.
It is comprised of a human silhouette within a blue nearly closed circle, superimposed by a starburst/spiral or double helix (as seen from the end).
The human silhouette in the background reflects the centrality of humans to the design.
The circle nearly enclosed by the C shows the goal of closing the loop. The color blue represents the importance of water to Life.
The golden bars forming the rungs of DNA also form a star, Sol and ultimate source of power. With some imagination, the golden bars also help form the e and l in CELSS. The spiral S simultaneously represents the DNA of Life as well as the ever outward expansion of Life through the galaxy. The color green represents the plant kingdom and its importance.