The cat didn't show up for breakfast this morning.
A little later Margaret noticed a small pile of what looked like dove feathers on our side porch.
The cat didn't show up for breakfast this morning.
From an article by Sarah Scoles in the October 2023 issue of Scientific American October
"Human bodies really can't handle space. Spaceflight damages DNA, changes the microbiome, disrupts circadian rhythms, impairs vision, increases the risk of cancer, causes muscle and bone loss, inhibits the immune system, weakens the heart, and shifts fluids toward the head, which may be pathological for the brain over the long term—among other things."
Physiology aside, the economics don't add up. The cyber moguls currently leading the way into space only do so because of vast subsidies made available from the U.S. budget. The project will never be more than a great drain of resources. Furthermore, the resources launched into the void beyond Earth's atmosphere are not then available for other vital priorities which are actually supported by a majority of citizens -- housing, equitable health care, coping with climate change, curbing the proliferation of nuclear weapons...
None of the above, of course, will deflect the enthusiasm for space exploration among people who have been drenched in decades of Star Trek reruns. The lure of casting aside all the old habits and constraints and overcoming great challenges is nearly irresistible -- not to mention those spiffy Star Trek uniforms.
Not mentioned in the Scientific American article was a possible substitution for the challenge of Space which does not require absorbing large doses of radiation. That is the exploration of the Earth's oceans which cover 70 percent of the planet's surface and account for 97 percent of our water. Millennia of engagement with the seas have clearly only skimmed their surfaces.
The challenges of penetrating and living in the depths are surely in many ways as daunting as those presented by Space exploration, but the potential real benefits are greatly more tangible, and the solution to meeting the challenges are more a matter of adhering to sound science rather than pushing human physiology beyond sustainable limits.
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| Katsushika Hokusai |
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Update:
For a good example of NASA boosterism about space travel see the recent NY Times article,
Maybe in Your Lifetime, People Will Live on the Moon and Then Mars
"NASA believes that with 3-D printing and soil made out of moon dust, they can create a subdivision in space in the next two decades."
The article is all about tech gimmicks, with no mention of the daunting challenges to human physiology posed by life in Space detailed in the Scientific American piece.
I have hesitated writing about Susan L. Rosenberg and her book, An American Radical:: Political Prisoner in My Own Country I came across the book recently by accident while browsing through biographies in the collection of my local library. It was published over twenty years ago and therefore not in great demand and easily available.
It may be the best book I have ever read. I'm sure I will be unable to adequately support that judgement with my words. Of course, that is of no real consequence since anyone else can easily acquire the book and make their own judgements about its value.
Rosenberg was arrested in 1984 in the act of transporting explosives and guns to support armed rebellion. She was given a fifty-eight year sentence, of which she spent sixteen in high-security prisons around the country. She ultimately won a commutation of her sentence in the last hours of the Clinton presidency.
An American Radical presents a vividly detailed account of what it is like to face a life in the American system of incarceration. Rosenberg survived the experience thanks to allies in and out of prison, along with her stamina, intellectual capacities, and emotional resilience. Those same qualities allowed her to craft her epic story and -- unlike the vast majority of inmates -- to come out a better, more complete, person than when she went in.
Four Colombian children found alive in jungle weeks after plane crash
There was a great story this morning from Reuters: