Questions regarding living organisms, searches for life, or human life in space.
Questions tagged [life]
121 questions
18
votes
2 answers
Why haven't we sent seeds of life to other planets yet?
We could have sent seeds of life (say a few ounces of microbes) along with every planetary exploration craft. Why we haven't done that so far?
jorel
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15
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1 answer
Have water bears ever been studied on the ISS or in Space?
I'm sure a lot of people are familiar with the ever resilient tardigrades. Have we ever done studies to see how they would fair in a space environment or any other neat studies, perhaps aboard the ISS? If so, what were the experiments done, and what…
Magic Octopus Urn
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10
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1 answer
Does NASA have a plan to search for the life in Europa?
Europa is one of the most interesting moons in our solar system. It seems possible that some kind of living beings are able to live beneath its frozen surface.
Question. Does NASA (or any other international organization) have a plan to search for…
Saint Georg
5
votes
1 answer
Space exploration designs based in biology?
I was reading about how many inventions are spurred by biological structures that exist in nature. A few of which include:
Velcro: from burr cacti (and it is used in space, sometimes to scratch noses!)
Natural sediment filtration.
Hexagonal…
Magic Octopus Urn
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4
votes
3 answers
Evidence of alien civilizations
When scientists talk about the probability of us being the only intelligent species in the universe, they always say that "we should see the galaxy filled with life". I never really understood how they meant that.
Let's assume we're observing Earth…
user35472
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2
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1 answer
What percent of star systems has planets that could potentially support life?
I wonder if there are any calculations that estimate the percentage of star systems with planets that potentially can support life?
Asterea
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1
vote
0 answers
Future of civilization in our solar system - AI or Human?
Which civilization type from Earth is most likely to exist one million years from now?
1) Human/Biological
2) Artificial Intelligence
3) Both
4) Neither
Interested in any enlightening comments. Personally, I don't see human civilization standing…
Ben Stone
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0
votes
1 answer
Could 'life' exist on other planets without water - as electrical impulses, for example?
Like many laymen I always wonder why scientists only ever talk about life on other planets - and get excited by the prospect - when they find planets that may have water.
Has anyone suggested that other forms of life - like electrical impulse based…
Glen
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-1
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Life on Earth previous to us
I've seen in several places that there seems to be an extinction cycle on earth of approximately 27 million years. I've read this here:
http://www.dailymail.co.uk/sciencetech/article-1294372/Life-Earth-wiped-27-million-years.html
And also saw a…
MxmastaMills
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