Astronomy & Cosmology

Discussion in 'Science and Technology' started by waltky, Jan 11, 2018.

  1. waltky
    Offline

    waltky Wise ol' monkey Supporting Member

    Joined:
    Feb 6, 2011
    Messages:
    25,790
    Thanks Received:
    2,537
    Trophy Points:
    275
    Location:
    Okolona, KY
    Ratings:
    +6,204
    'Serious gap' in cosmic expansion rate calls for new physics...
    [​IMG]
    'Serious gap' in cosmic expansion rate hints at new physics
    11 Jan.`18 - A mathematical discrepancy in the expansion rate of the Universe is now "pretty serious", and could point the way to a major discovery in physics, says a Nobel laureate.
     
    • Thank You! Thank You! x 2
    • Informative Informative x 2
  2. Mac1958
    Offline

    Mac1958 Diamond Member

    Joined:
    Dec 8, 2011
    Messages:
    49,482
    Thanks Received:
    9,638
    Trophy Points:
    2,060
    Location:
    Independent Ave.
    Ratings:
    +40,546
    There is still SO MUCH to learn.

    Which is SO COOL.
     
    • Agree Agree x 1
  3. Mousterian
    Offline

    Mousterian Gold Member

    Joined:
    Jul 26, 2015
    Messages:
    1,668
    Thanks Received:
    232
    Trophy Points:
    140
    Ratings:
    +1,624
    There's still PLENTY to learn, and likely will be for a very long time.
    Famous last words?
    'Dark' matter and energy are still mysterious, and may well have some bearing on the expansion anomaly.
    And when are we gonna peer into a black hole?
    But theoreticians and mathematicians somehow manage to expose the most unbelievable stuff (Planck and Einstein) that takes decades and centuries to verify experimentally.
    Science is so valuable, wherever it is directed.
     
    • Funny Funny x 1
  4. fncceo
    Online

    fncceo Gold Member

    Joined:
    Nov 29, 2016
    Messages:
    10,870
    Thanks Received:
    1,599
    Trophy Points:
    290
    Ratings:
    +15,082
    I’ve always been interested in Astronomy.

    [​IMG]
     
    • Funny Funny x 2
    • Agree Agree x 1
  5. irosie91
    Offline

    irosie91 Diamond Member

    Joined:
    Jul 12, 2012
    Messages:
    60,257
    Thanks Received:
    4,553
    Trophy Points:
    1,815
    Ratings:
    +17,804
    I do not know why Y approaches infinity------nor do I know WHENCE we expand or------TO WHERE
     
  6. usmbguest5318
    Offline

    usmbguest5318 Gold Member

    Joined:
    Jan 1, 2017
    Messages:
    10,929
    Thanks Received:
    1,607
    Trophy Points:
    290
    Location:
    D.C.
    Ratings:
    +5,768
    TY for sharing.

    From the article:
    Why am I reminded of the machinations people once undertook to sustain the Ptolemaic model of the universe? (See also/instead the series of essays beginning at: Naked Eye Observations | Astronomy 801: Planets, Stars, Galaxies, and the Universe)

    LOL I had to chuckle upon reading that because experiments that do detect neutrinos also don't come up with much. Such is the nature of neutrinos.

    I'm no cosmologist, astronomer, physicist, etc., so I'm of no mind to refute what's currently thought about the nature of the universe. I can only accept what such researchers find/say and "go with it" until they change their minds and present something different. Be that as it may, I have to say the idea that there's this dark energy/matter that comprises some 70% of the universe yet we can't find it, can't touch it, etc. has never sit right with me.

    My simple-minded response to that "dark" mumbo-jumbo is that black holes -- because we can detect them even though we cannot see them in the traditional sense -- must weigh a hell of a lot more than anyone ever thought and all that "missing" mass has been swallowed up by them. Perhaps instead there are a bunch of black holes we haven't found yet? (cont'd below...)
    (cont'd...)

    ....Another possibility is that someone's made a huge mistake somewhere and nobody's yet found it. Far be it from me to assert that's so or not so, but it sure seems like a possibility.
     
    • Winner Winner x 1
  7. waltky
    Offline

    waltky Wise ol' monkey Supporting Member

    Joined:
    Feb 6, 2011
    Messages:
    25,790
    Thanks Received:
    2,537
    Trophy Points:
    275
    Location:
    Okolona, KY
    Ratings:
    +6,204
    Most Distant Star Ever Detected Sits Halfway Across Universe...
    [​IMG]
    Most Distant Star Ever Detected Sits Halfway Across Universe
    April 02, 2018 | WASHINGTON — Scientists have detected the most distant star ever viewed, a blue behemoth located more than halfway across the universe and named after the ancient Greek mythological figure Icarus.
     
  8. westwall
    Offline

    westwall Diamond Member Gold Supporting Member Supporting Member

    Joined:
    Apr 21, 2010
    Messages:
    56,187
    Thanks Received:
    12,099
    Trophy Points:
    2,180
    Location:
    Nevada
    Ratings:
    +40,871





    And, based on the life expectancy of stars, that sucker has been dead for billions of years. i wonder what it looks like now....
     
    • Funny Funny x 1
  9. waltky
    Offline

    waltky Wise ol' monkey Supporting Member

    Joined:
    Feb 6, 2011
    Messages:
    25,790
    Thanks Received:
    2,537
    Trophy Points:
    275
    Location:
    Okolona, KY
    Ratings:
    +6,204
    We'll have to wait...

    ... till the light of it burning up reaches us...

    ... to find out.
     
  10. there4eyeM
    Offline

    there4eyeM unlicensed metaphysician

    Joined:
    Jul 5, 2012
    Messages:
    11,945
    Thanks Received:
    1,293
    Trophy Points:
    265
    Ratings:
    +4,506
    Not to sound too silly, but intuitively I think there is a relation to something basic about 'gravity' that we have yet to understand. This may be the, or at least a, key to many things, including moving around in the universe. Also, it may lead to real, safe energy generation changes for us here on earth.
     

Share This Page