View Full Version : Life from Mars could have ‘polluted’ Earth: Krauss

2012-Sep-04, 05:00 PM
Unless you’ve been living under a rock — Earth or Martian — in the past month, surely you have heard about the Curiosity rover’s landing and early adventures on Mars. The prospects for what the rover could find has many in the space community very excited, even though Curiosity is supposed to look for habitable [...]

More... (http://www.universetoday.com/97188/life-from-mars-could-have-polluted-earth-krauss/)

2012-Sep-04, 10:31 PM
Krauss’ interview is below. What do you think of his views of Martian life?I think Krauss could quite easily be voted as being the most likely modern-day 'populist scientist' to 'go over the edge' … (given that its pretty clear that Kaku has already …)

2012-Sep-05, 01:05 AM
I'm not the only one who initially read that last word in the title as "Kansas", right?

2012-Sep-05, 11:02 PM
Haven't we had threads on this very subject for years?

Colin Robinson
2012-Sep-06, 10:32 PM
Haven't we had threads on this very subject for years?

For those who are interested in this topic, but haven't been following the "Life in Space" forum over the last few years, here are two relevant threads from about 12 months ago:

* Topics about panspermia (http://cosmoquest.org/forum/showthread.php/121496-Topics-about-panspermia-Split-from-Feedback)

* Protozoan panspermia (http://cosmoquest.org/forum/showthread.php/121551-Protozoan-panspermia)

2012-Sep-07, 02:34 AM
I'm not sure if this was covered in the past LIS links, (provided by Colin), but Krauss mentioned the possibility that life from Earth may also have 'polluted' Mars, (his term). Whilst I don't think he was actually thinking of it when he said this, I'd say the idea might be slightly credible, given that not all probes sent to Mars were sterilised.

Whether the particular stowaway microbes were of the type which could survive the trip, and whether they had anything to eat and drink on the way, and when they got there, might be debatable however.

Frequently touted 'dormant microbes', I would think, would also be a very selective and pretty specific 'possibility' … one I wouldn't particularly argue was likely in the overall random plethora of possible stowaways .. and yet, this 'possibility' arises frequently from the words of one Chris McKay (NASA Astrobiologist). If someone deliberately implanted dormancy-capable life on a Mars-bound probe .. well, that specific scenario might carry some credibility, I suppose ..(?)...