article_snippet.sent: For these reasons, We think [the organisms] are coming from space,' Dr Milton Wainwright added. '
article_snippet.sent: The critics claim that the samples we obtained must have come from Earth, that it that there must be a mechanism which can lift these particles from Earth to the stratosphere,' 
article_snippet.sent: If we organisms came from Earth our organisms must be contaminated with common Earth organisms and our organisms are not.' 'we will probably not be believed until Nasa repeats we findings,' he added. '
article_snippet.sent: I suspect that Nasa they will then try and take the credit by claiming that they methods were somehow more sterile or precise.'
article_snippet.sent: This describes the belief that life was deliberately sent to Earth by some unknown extraterrestrial civilisation.
article_snippet.sent: This proves beyond doubt that the particle was travelling at speed from space when the particle was sampled.'
article_snippet.sent: However, most scientists believe most scientists are likely to have been carried up from the Earth rather than having an extraterrestrial origin.
article_snippet.sent: Some astrobiologists believe life started on the Earth after being carried here on a comet or asteroid, while others believe it is more likely that the basic chemical building blocks were carried in this way rather than established life.
article_snippet.sent: Nigel Watson, author of the UFO Investigations Manual, said the idea that such material were being sent out by aliens attempting to seed other planets was a 'leap of the imagination'.
article_snippet.sent: Nigel Watson, author of the UFO Investigations Manual said: 'This would seem to provide proof that outer space and not just the surface of our planet is teaming with life. '
article_snippet.sent: I'm sceptical about this and our would need to collect more samples like this to have a better idea of where this originates from. '
article_snippet.sent: this is a leap of the imagination that this came from an ET race trying to seed our planet with their biological constructs. '