Yes there is and WE put it there
The Mars rover’s were probably NOT 100% microbe free.
The Mars rover’s were probably NOT 100% microbe free.
Would be interesting to see if (presuming not 100% microbe free) we did leave something, the microbes began to flourish. Don't see as they can without having a food source.
I once chatted with one of the Viking Mars Lander engineers and asked him about forward contamination.
He told me that they attempted to sterilize all surfaces before launch, but that there is no way to guarantee that 100% of microbes were removed.
He said that the Russians were pretty careless about such things.
Agreed, Mars has probably been contaminated already.