[hoorayimhelping]

There is a big, big difference between, "we found a rock on earth that is probably from Mars that was blasted here some time in the past," and, "we went to a specific area of Mars and got a rock and brought it back." Not least of which is the intrinsic value and aspirational nature of us actually fetching things from other planets ourselves, with intent and purpose, rather than luckily stumbling upon some.