Quote (HeLiCaL @ Aug 21 2013 08:24am)
there are remnants of what appears to be bacterial habitat on meteors, but its hard to prove wether it came like that from space or this feature appeared already on earth
Yeah that is a real problem. The earth is literally infested with bacteria and other forms of life. Any samples that make it to the surface are sure to be totally contaminated. So unless a sample like this contains something totally different than what we expect to find on the earth; convincing anyone that what was found was of extraterrestrial origin will be difficult.