- #1
Gondur
- 25
- 0
Hello,
Suppose we humans traveled in a spacecraft to another Earth like planet with the same gravity and atmospheric composition as our own Earth.
Suppose we landed on the surface.
Suppose we opened the door of the craft, and walked onto the planet surface.
Suppose we did not wear a spacesuit - or any protection - aside from 'normal clothing' (jeans and t-shirt).
Suppose we inhale a couple of breaths.
Would we quickly collapse and die?
I assume that, because we (and our ancestors) - our DNA - has not evolved over millions of years within the biosphere of the alien world, our immune system has not developed an immunity to the millions of microbes floating in its atmosphere - equivalent microbes which here on Earth pose no threat to us - but are slightly different in their design and function on this new world that our immune system simply cannot recognise them and is vulnerable to them.
So, my point is, even if we found an Earth like world - with similar gravity, atmospheric composition etc - this similarly is only superficial - and its biosphere - especially life at the microbial level - would make moving and colonising this planet impossible - unless we develop immunity to its biosphere as we have done here on Earth.
Some thought is appreciated. Thanks.
Suppose we humans traveled in a spacecraft to another Earth like planet with the same gravity and atmospheric composition as our own Earth.
Suppose we landed on the surface.
Suppose we opened the door of the craft, and walked onto the planet surface.
Suppose we did not wear a spacesuit - or any protection - aside from 'normal clothing' (jeans and t-shirt).
Suppose we inhale a couple of breaths.
Would we quickly collapse and die?
I assume that, because we (and our ancestors) - our DNA - has not evolved over millions of years within the biosphere of the alien world, our immune system has not developed an immunity to the millions of microbes floating in its atmosphere - equivalent microbes which here on Earth pose no threat to us - but are slightly different in their design and function on this new world that our immune system simply cannot recognise them and is vulnerable to them.
So, my point is, even if we found an Earth like world - with similar gravity, atmospheric composition etc - this similarly is only superficial - and its biosphere - especially life at the microbial level - would make moving and colonising this planet impossible - unless we develop immunity to its biosphere as we have done here on Earth.
Some thought is appreciated. Thanks.