More seriously, one of three possibilities comes to mind:
1. Analyses of the material brought back from a recent comet rendezvous have turned up amino acids at the least, viral / bacterial cysts at the most, and DNA somewhere in the middle,
2. Analysis of a moon of Saturn or Jupiter has turned up chemical elements of types, quantities, and in proportions most readily explained by some kind of metabolism, not necessarily a carbon-based one with which we are most familiar,
3. Analysis (again, of an outer moon) has turned up "something" that behaves in some manner(s) consistent with our understanding of Life, such as being self-replicating, even if it is otherwise unfamiliar.