Do you believe in the possibility of life in other galaxies?

rod

Oct 22, 2019
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Interesting question in post #1. I use these two exoplanet sites for studying exoplanets and other solar systems.

http://exoplanet.eu/catalog/, currently 4753 exoplanets are listed as confirmed at this site. The most distant is XTE J1751-305 b shown at 35882 LY distance from Earth (11,000 pc).

This site, https://exoplanetarchive.ipac.caltech.edu/index.html, currently 4389 exoplanets listed as confirmed. The most distant is OGLE-2015-BLG-0051L b shown as 8200 pc or 26745 LY distance from Earth.

How do you propose to verify that exoplanets exist and are earthlike in other galaxies given the max distances so far documented for exoplanets in our galaxy that are confirmed? Example, M31 in Andromeda, a favorite galaxy target to view using my 10-inch telescope.

Post #1 also raises the question of how life arose to begin with here on Earth (or any other planet in our solar system or exoplanet). 1. abiogenesis 2. panspermia 3. special creation.
 
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Oct 23, 2020
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We now have over 4500 exoplanets discovered and that’s only a very small fraction of the universe so it’s likely there are trillions of exoplanets out there. If a few are in a “habital zone” we might not be the only planet with life but because of the distance we can’t prove it now.
 
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Feb 11, 2021
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Earlier I thought that there can be any other civilization, but the more I learn about space, the more I make sure that the chances that other civilizations exist are high enough. Perhaps the closest civilization lives in our Solar System....
 
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rod

Oct 22, 2019
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My observation here. The new confirmed exoplanet count is 4758 now at .eu site I posted in #2 comments. The Earth has a complex fossil record showing the Cambrian explosion of life and the Carboniferous explosion of land and plant life in abundance. So far, no other planet other than Earth has been shown to have this record of life. Today Earth is filled with many plants in abundance too. Plant life in abundance today as well as the fossil record and what is found in the Cambrian explosion may place additional constraints on any evolutionary interpretation of life on exoplanets where an evolutionary process of some type could give rise to advanced, intelligent life that develops science and engineering programs.

In our own solar system, Mars has not been shown to have a fossil record with a Cambrian explosion type life forms or Carboniferous explosion of land and plant life forms, Venus too.
 

Catastrophe

Approaching asteroid? Is this THE one?
Feb 18, 2020
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Do you believe in the possibility of life in other galaxies?

Life - at least microorganisms - most definitely, without a shadow of a doubt - yes!

As the level of intelligence rises, the probability decreases, but I still consider that there is intelligent life in every galaxy (probably many times over).

Just my personal opinion.

Cat :)
 
Oct 23, 2020
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Also, I'd like to say that some forms of life ( not intelligent ) can live on Mars. As far as you may know, the red planet has waster ( ice ), so I presume that in this scientists can find some forms of life or maybe traces or hints of some form of life that could exist on Mars.
 
Oct 23, 2020
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I think probably such space missions like James Webb Space Telescope the most expensive and the most advanced telescope by NASA or Ariel space telescope and, it has the same purpose as James Webb Space Telescope to search for planets found beyond our solar system, otherwise known as exoplanets or extrasolar planets. I guess such technology will give us a hint at where life can exist and open more exoplanets.
https://www.skyrora.com/blog/uk-space-news
 
Jun 1, 2021
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I think this is such an interesting question but because I'm really interested in the ethics of 'colonising' other planets, galaxies etc. If we do go to mars and add an Earth colony there, we are only judging our ability to do this by technical ability. But is it right to do this? I'm not sure
 

Catastrophe

Approaching asteroid? Is this THE one?
Feb 18, 2020
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" But is it right to do this? I'm not sure"

I am (sure). I think, if we really have to, we should finish destroying "our own" planet, before we start on others.

Cat :)
 
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Jun 4, 2021
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'Belief' is neither here nor there. IMHO, we will only be able to address this question rationally when we understand how life originated, wherever and whenever that occurred.

At this point, despite the best efforts of many very smart people, we do not even have a credible theory of how abiogenesis might have occurred, let alone how it actually did occur.
 
Apr 18, 2020
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The sheer numbers of planets, stars, galaxies, argue the inevitability of life elsewhere. They even argue the likelihood of intelligent life somewhere else, despite the amazing constellation of just-right conditions it took to evolve us.

But when it comes to contact, a small point that's rarely considered is the limitations of chemical propulsion to break out of a planet's gravity well. If Earth were a little bigger, we might never get off it.

A bigger consideration is time. Maybe extraterrestrial civilizations do exist--or have existed. But for how long? We invariably assume that we will be here until the sun expands and forces us to leave. Why do we assume that? Given the existence of multiple planetary civilizations, what is their average life span? Humanity may be just another example of a cosmic spark that burns for an instant and then is gone. What's the likelihood of two such sparks burning at the same time, and in such positions that they can, & do, become aware of each other?
 

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