we do event project similarly for a large company in our area and find sometimes a bit of whimsey works to help the memorability so I did a variety of approaches for you to consider. Love the NASA story but not sure reference to space success is specifically where you are going... or is it? does it make sense to add symbols from your industry like antibody, or dna symbols?
I like the idea of adding anti-bodies or DNA in your submission #7. We are a high science company. With regard to #6, it is a bit too much like the United Way... or something around cooperation. Aligned sense of mission is a good thought, but the overall look and feel should be more a call to action of taking the lead. Happy to keep open the dialogue.