I think they would both be massive discoveries that would shake things up. If it used DNA/RNA it's almost certainly from the same tree of life as us, validating

I think they would both be massive discoveries that would shake things up. If it used DNA/RNA it's almost certainly from the same tree of life as us, validating the panspermia theory. If it didn't then we'd get to see a completely novel chemistry of life, although still water based.