3 ms·
There are so many fascinating possibilities. 1) DNA based life with genetic overlap (potentially indicating that Mars life seeded earth life, or vs.vs). 2) DN
by marcusverus 6y ago
There are so many fascinating possibilities.
1) DNA based life with genetic overlap (potentially indicating that Mars life seeded earth life, or vs.vs).
2) DNA based life with no genetic overlap (possibly indicating original life on mars, or a common seed source for Earth and Mars)
3) Radical, non DNA based life (indicating original life on mars)
4) E. coli (indicating that NASA needs to fire their sterilization team).
I'm sure there are more fascinating possibilities that I'm not aware of!
- dogma1138 6y agoDNA with different chirality (would likely prove distinct origins better than genetic overlap, if life was seeded from the same origin billions of years ago there could be no overlap today, and some overlap doesn't prove origin either since gene can develop independently even very specific mutations), proto-life - RNA world/self replicating proteins... Both of those would likely be a "more interesting" thing to study. The most boring part would likely be finding DNA life which is quite similar, I'm not sure it would point to any specific origin and if it's metabolically going to be quite similar to some life we can find on earth the overall new science from it might be fairly limited.