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What Works in Space

And what does not work in space?

This week’s essay is an interesting one for me, because I had written this nearly 30 years ago and amazingly it still makes sense. So, in all these intervening years, hasn’t there been much progress or have I not kept up with developments? The latter may be one reason, but it is also true that by 1989, when this essay was written some basic and important knowledge was already there. And here it is (with some few minor pieces of information added). A former colleague of mine, Prof. Asashima, was one of the founders of the “Society of Space Biologists” in Japan. But what is space biology and what do space-biologists in contrast to exobiologists, who ponder about life on Mars, Ganymede and Europa moons, actually do? —>

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Blood does not have to be red

And it does not have to be blue either

Imagine that you caught a fish and want to turn it into a meal. You cut off its head, there is no blood; you cut it open, there is no blood; you slice off a filet and you still don’t see red blood. You’d be surprised, but this could happen to you if you had a so-called bloodless Antarctic ice fish to prepare for dinner – and they are mighty rare and not supposed to be killed. Continue reading