Why extremophiles bode well for life beyond Earth - Louisa Preston
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Date: 2020-08-22
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Comments and reviews: 10
BariumCobaltNitrog3n
I totally agree, we're sending the very first humans into space, just to see what will happen to them. Once the politicians, or philanthropists, figure out this is something we need to do to survive, and not just a hobby for NASA, maybe some progress will be made.
We have not even begun to scratch the surface is exactly right. Our grandchildren will have something faster, more robust and a much better propulsion system, maybe cryo-storage for the trip, but progress is painfully slow right now.
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I totally agree, we're sending the very first humans into space, just to see what will happen to them. Once the politicians, or philanthropists, figure out this is something we need to do to survive, and not just a hobby for NASA, maybe some progress will be made.
We have not even begun to scratch the surface is exactly right. Our grandchildren will have something faster, more robust and a much better propulsion system, maybe cryo-storage for the trip, but progress is painfully slow right now.
reply
BariumCobaltNitrog3n
Is there any evidence of life anywhere besides Earth? No. That is a fact. I never said there IS NO LIFE. Don't use quote marks for making things up. Use them to denote EXACTLY what someone said.
I like reality, describing it using facts is most definitely not pessimistic. I would be out of my mind excited if life were found out there, and probably freaking out too. but I blame Michael at Vsauce for that.
And of course there's reason to assert, that's all we do, you're doing it now.
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Is there any evidence of life anywhere besides Earth? No. That is a fact. I never said there IS NO LIFE. Don't use quote marks for making things up. Use them to denote EXACTLY what someone said.
I like reality, describing it using facts is most definitely not pessimistic. I would be out of my mind excited if life were found out there, and probably freaking out too. but I blame Michael at Vsauce for that.
And of course there's reason to assert, that's all we do, you're doing it now.
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John. T. Q.
2 of 2
118 light years is a large distance on an earth scale. But the milky way is 100, 000 light years across, and it is one of an infinite number of galaxies. We haven't reached very far at all yet. It's not that there's nobody out there, we simply have no way to know where they are.
If an alien race somehow developed a telescope strong enough to see our planet in detail, and they were 20, 000 light years away i. e. still in the milky way. The human race would not have left a trace yet.
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2 of 2
118 light years is a large distance on an earth scale. But the milky way is 100, 000 light years across, and it is one of an infinite number of galaxies. We haven't reached very far at all yet. It's not that there's nobody out there, we simply have no way to know where they are.
If an alien race somehow developed a telescope strong enough to see our planet in detail, and they were 20, 000 light years away i. e. still in the milky way. The human race would not have left a trace yet.
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Simon
It's simple: you need stable conditions in an aqueous environment at a proper temperature in the presence of organic molecules, for millions of years, along with proper levels of radiation and sufficient minerals.
This in turn requires the conditions that we have here on Earth, which are so unique that they probably don't exist elsewhere in the galaxy. In fact, Earth is right in the highest probability-area for it, so if we were to search for life elsewhere then we'd orbit the galactic core.
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It's simple: you need stable conditions in an aqueous environment at a proper temperature in the presence of organic molecules, for millions of years, along with proper levels of radiation and sufficient minerals.
This in turn requires the conditions that we have here on Earth, which are so unique that they probably don't exist elsewhere in the galaxy. In fact, Earth is right in the highest probability-area for it, so if we were to search for life elsewhere then we'd orbit the galactic core.
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That1Guy
No, that's not a fair comparison. First off, accepting that there is other life in the universe not on this planet has nothing to do with the creation of the universe. Secondly, based on probability, it's likely that there is other life elsewhere in the universe, while on the other hand, from what little we know of the beginning of the universe, there is a low probability that it was created by a god (the opposite to my previous statement about life.
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No, that's not a fair comparison. First off, accepting that there is other life in the universe not on this planet has nothing to do with the creation of the universe. Secondly, based on probability, it's likely that there is other life elsewhere in the universe, while on the other hand, from what little we know of the beginning of the universe, there is a low probability that it was created by a god (the opposite to my previous statement about life.
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John. T. Q.
what he's trying to say is that you wouldn't label a new drug as not effective, simply because the one guy you tested it on didn't react to it. You need a larger sample size. The FACT is that we've only been able to take thorough measurements of ONE planet in our solar system, Mars. You are right in that we have no proof yet, and may never have hard evidence. But probability states that it SHOULD exist SOMEWHERE else, just not necessarily nearby.
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what he's trying to say is that you wouldn't label a new drug as not effective, simply because the one guy you tested it on didn't react to it. You need a larger sample size. The FACT is that we've only been able to take thorough measurements of ONE planet in our solar system, Mars. You are right in that we have no proof yet, and may never have hard evidence. But probability states that it SHOULD exist SOMEWHERE else, just not necessarily nearby.
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John. T. Q.
1 of 2
You obviously don't understand the vast size of the universe and the vast distances that exist between all the points in it. In 1895 the first radio signal was created. This limits the sphere of influence that we have. Based on this the furthest away that anything could detect us is 118 light years away. beyond that waves of any sort (produced by humans) are undetectable because they haven't gotten that far yet.
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1 of 2
You obviously don't understand the vast size of the universe and the vast distances that exist between all the points in it. In 1895 the first radio signal was created. This limits the sphere of influence that we have. Based on this the furthest away that anything could detect us is 118 light years away. beyond that waves of any sort (produced by humans) are undetectable because they haven't gotten that far yet.
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EmperorsAlpaca
I like to think that our form of life is one of many. Maybe there's an abstract form of life on other planets that uses entirely different things in bonding and chemical reactions. We have a limited amount if information on Earth, which is limited by our perception of the things around us. We don't even understand consciousness. I think life could exist anywhere, but it might not be the kind of life we think of.
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I like to think that our form of life is one of many. Maybe there's an abstract form of life on other planets that uses entirely different things in bonding and chemical reactions. We have a limited amount if information on Earth, which is limited by our perception of the things around us. We don't even understand consciousness. I think life could exist anywhere, but it might not be the kind of life we think of.
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dzonikg28
If there is inteligent life nearby in out galaxy they will probalu see us before we see them. alian telescop could maybe see out city lights in the night but light from them travel only 100 years so if they see us they must be 100 light year in range. we neede some supermega strong telescop to actualu see planetes and search for artifical light. because they will also need light in the night
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If there is inteligent life nearby in out galaxy they will probalu see us before we see them. alian telescop could maybe see out city lights in the night but light from them travel only 100 years so if they see us they must be 100 light year in range. we neede some supermega strong telescop to actualu see planetes and search for artifical light. because they will also need light in the night
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Swan
I hurd a theory were venus had life on it as a salt water planet but in orbit crashed into earth and took a big chunck out of it and put salt water in place of it also creating earths moon, they guessed that because today venus is spinning backwards and earth has a wobble, the crash slowed venus down creating it to heat up and become the planet it is today.
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I hurd a theory were venus had life on it as a salt water planet but in orbit crashed into earth and took a big chunck out of it and put salt water in place of it also creating earths moon, they guessed that because today venus is spinning backwards and earth has a wobble, the crash slowed venus down creating it to heat up and become the planet it is today.
reply
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