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  1. #1
    perigny270's Avatar
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    Default The right place & the right time.



    How lucky we are:
    Imagine if we were near the middle of the galaxy. Bright sky all the time. We wouldn't even know that there is a Universe out there. Same thing for being in a globular cluster. Dark nights would be a rare thing in a double-star solar system, or on a planet with a bunch of moons.

    And our atmosphere - we can see right through it at night some of the time nearly everywhere on the planet. Imagine if there were high clouds all the time. There wouldn't be any incentive to "reach for the stars (stars - what's that?)". And yet our atmosphere keeps out most of the killer rays that come in from all over.
    Of course, being away out on a spiral arm keeps us far away from the all-too frequent radiation events wherever stars are closer to each other... And our star has only small regular variations in anything.
    Our biggest hazard is from the occasional chunk of rock - the really big ones come by only every hundred million years or so (last one 65,000,000 yrs ago).

    I guess that maybe we are here because of all the above. Our solar system is tame and accessible. We have a front-row seat in our galaxy, and a real good vantage point of many neighbours. And we can see all the way to the end of the Universe if we look in the right directions.

    I guess the only comparable place might be somewhere on the edge of one of the Magellin clouds. The Andromeda galaxy would be something to see. Maybe a good spot to visit - I'm happy right here.

    Just musing about why our hobby is so enriching. I have always enjoyed looking up, but only recently moved beyond binoculars. The instruments available now are just so good.

    Anyone thinking like this? Any other comments?

    BTW for the moderators. I am not sure that this is the right place. I couldn't post to General Astronomy Forum. Please move it if appropriate. Thanks.

    Eric
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    Flea77's Avatar
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    Default Re: The right place & the right time.

    I tend to look at it more as adaptation. Those who live closer to sources of radiation would have a much higher resitance to radiation. Those who lived on a planet with a high level cloud structure would do more radio astronomy. Etc.

    I agree we live in a nice place in the galaxy, but I also believe that it is a "nice place" because that is what we are adapted to. An example would be where we live on earth. I could never live in New York city, nor could I ever live out in the middle of nowhere. I am comfortable in my small town just north of the third largest city in the US. Gives me the small town atmosphere with access less than an hour away to virtually anything I could ever want.

    Allan

  3. #3
    perigny270's Avatar
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    Default Re: The right place & the right time.

    Good point. We certainly have evolved to "fit in" here.
    Eric
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    Default Re: The right place & the right time.

    I agree with all of the above really. But we are very blessed to have such wonderful views - so much to look at, so much to see for those of us prepared to open our eyes.
    "We can't solve problems by using the same kind of thinking we used when we created them." - Albert Einstein
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    LittleGreyJK's Avatar
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    Default Re: The right place & the right time.

    I would just love to visit some other places in space, particularly some other Galaxies and DSOs.... maybe one day content with staring up at them for the time being though
    "We can't solve problems by using the same kind of thinking we used when we created them." - Albert Einstein
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