Nah, I doubt it.
Look, discovering an alien ship would be the biggest discovery man has ever made. Of such significance as to make the discovery of fire or the wheel or electricity rank up there with the invention of the DVD rewinder. Concrete proof of alien life would be HUGE.
If they thought for a minute it might really be an alien ship they would have immediately went after it.
Thats my opinion.
Yes, it would be huge as you say. However, does anyone doubt that somewhere out there in the over
100 BILLION other galaxies in the universe that there is NOT life?
To me, the question is how intelligent or evolved the other life is. Are we ahead of the curve? Or, given the fact that the universe is 13.7 billion years old (give or take a few hundred million years) and humans are about 200,000 years old in our current form, are we at the very low end of the curve?
Even if another hominid like species had only a 100,000 year head start on us, the difference would be astounding.
Fun stuff to think about, but IMO it is only a matter of time until we have proof of life located elsewhere.