[WhiskeyX]

While true as far as it goes, with more than 200 billion stars in this galaxy alone and many time that number of planets, how many are likely to have orbits within the habitable zone for water? If Bodes law holds true for even a fraction of those solar systems, there must be a phenomenal number of those planets in just this one galaxy. Then consider the fact there are more galaxies we can see than there are stars in just this one galaxy. Consider then how many planets must be in habitable zones in those galaxies. We already know that material is being transported between planets in this Solar System as a result of large impacts splashing terrestrial rocks from the surfaces of the planets. We already know that Martian rock could have harbored primitive life forms despite reentry into the Earth's atmosphere. It seems almost farfetched to think Panspermia is not possible given the tremendous opportunities for chance to allow even the most miniscule of opportunities.

[Pontiac]

We already know that Martian rock could have harbored primitive life forms despite reentry into the Earth's atmosphere.

We have meteors that it is theorized came from Mars.

These meteors have formations that resemble fossilized bacteria.

Even if the formations in the rock are bacteria from Mars it is certainly possible that the bacteria was fossilized prior to leaving Mars or that the fossils formed from bacteria killed in space or on entry in to Earth atmosphere.

It is also possible since we know that bacteria here on Earth live inside of rocks that the formations are bacteria that entered the rocks after the rock came to Earth. (I really don't think this one is likely since the rock fell in Antartica but it is possible)

[UCANSEE2]

Actually, the cosmos works like nature. Even though we can't 'see it', there are immensely huge numbers of viable rocks with a star that can produce (a star is) life. Stars are born and die. New possibilities by the millions (est.) every 'day'.

Life is vast, and abundant, and we really understand little about it.

Similarly, the Universe is on such a scale that it is difficult for humans to even imagine. The Oort Cloud and the Asteroid belt look like a full crowd during a rock concert at a football stadium, from an overhead view. However, the scale is such that once on the ground, you could walk from one end of the stadium to the other, and never see another person.