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Galaxies already had enough material to form planets and life inthe early Universe!
On Jun 6, 12:08*am, Brad Guth wrote:
On May 19, 7:33*am, Yousuf Khan wrote: Baby galaxies grew up quicklyhttp://www.spacedaily.com/reports/Baby_galaxies_grew_up_quickly_999.html Quote: Up until now, researchers thought that it had taken billions of years for stars to form and with that, galaxies with a high content of elements heavier than hydrogen and helium. But new research from the Niels Bohr Institute shows that this process went surprisingly quickly in some galaxies. "We have studied 10 galaxies in the early Universe and analysed their light spectra. We are observing light from the galaxies that has been on a 10-12 billion year journey to Earth, so we see the galaxies as they were then. Our expectation was that they would be relatively primitive and poor in heavier elements, but we discovered somewhat to our surprise that the gas in some of the galaxies and thus the stars in them had a very high content of heavier elements. The gas was just as enriched as our own Sun," explains Professor Johan Fynbo from the Dark Cosmology Centre at the Niels Bohr Institute, University of Copenhagen. So is 12 or 13 billion year old life, possible? Looks like it might have been superficially possible. Still we'd have to know the specific conditions inside those early galaxies. They could've been wracked with a lot of supernova explosions near life-forming solar systems, thus destroying their life. Much like life chemicals were always existent in the early Solar System, but conditions weren't exactly right until maybe 3.5 billion years ago. Similar sort of problems may have occurred in those early galaxies, but in a galaxy-wide scenario. * * * * Yousuf Khan When galaxies join up, the amount of rogue/wandering nomad planets goes up by at least another thousand fold, and redistributed smaller items can easily run a million fold greater until they're collected as having impacted or simply captured by significant items of mass. *http://groups.google.com/groups/search *http://translate.google.com/# *Brad Guth, Brad_Guth, Brad.Guth, BradGuth, BG, Guth Usenet/Guth Venus There's no telling how many far flung items our solar system truly has to offer, and considerably greater numbers of wide ranging items associated with the Sirius star system shouldn't be any big surprise considering the recent demise of Sirius-B. Many others besides myself have been suggesting as to the vast number of wandering/rogue or nomad items of interstellar space could easily out-number the stars, whereas I'm simply suggesting that a thousand fold more items than stars shouldn't be all that unexpected and thereby at least doubling the mass of our galaxy (especially when including the population and mass of brown dwarfs) shouldn't be so unlikely. Clearly the vast amount of gravity represented by galaxies can help cause galactic mergers and some of those might combine to reform as a singular larger galaxy. However the closing SOA of Andromeda at 300+ km/sec should rip entirely through our galaxy and keep right on going, creating one hell of a mess out of each galaxy. Galactic retrograde encounters can be worse than anything imaginable, with tidal forces and millions of supernovas causing wide spread trauma and physical damage to each galaxy, that could easily be sufficient to destroy 99.9% of all biodiversity and intelligent life in either galaxy, whereas the much softer glancing pro-grade encounters should allow 99.9% of their biodiversity plus whatever intelligent life in either galaxy to survive. A galactic merger that's having to toss out spare black holes is probably another good indication of a cosmic death sentence to the vast majority of whatever life previously existed within either of those galaxies prior to their merging. http://www.nasa.gov/mission_pages/ch...dia/cid42.html http://groups.google.com/groups/search http://translate.google.com/# Brad Guth, Brad_Guth, Brad.Guth, BradGuth, BG, Guth Usenet/Guth Venus |
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