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Understanding the biological effects of gravity - NASA PubSpace article

25 Aug 2016, 22:48 UTC
Understanding the biological effects of gravity - NASA PubSpace article
(200 words excerpt, click title or image to see full post)

The very first paper I dove into from the new NASA public server covered topics near and dear, primarily the fact that microgravity is not survivable over the long term. There was, shall we say, a very enthusiastic embrace of the term 'omics' but otherwise some very interesting points. In a nutshell, we know almost nothing about the effects of any level of pseudogravity (referred to as AG from here on) between microgravity and 1 g. This is important. NASA is considering human missions beyond LEO in less than a decade. We can and should do some kind of testing between now and then, and the only way I see to do that affordably is to launch a dedicated orbiting laboratory.Read on for more. All costs are in current US dollars and are assumptions based on very little data.Background We know a lot more about levels higher than 1 g because we can access that regime here on Earth with centrifuges. In short, even levels as low as 1.5 g for more than a few hours is dangerous for humans. Slightly elevated levels lead to clear signs of stress in nearly all higher organisms (though there are microbes that thrive ...

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