On Mon, Feb 03, 2014 at 05:30:42PM -0800, Edgar L. Owen wrote: > All FYI only, Edgar > > Abraham Loeb, 2014. The habitable epoch of the early universe. > arXiv:1312.0613v2 [6pp]. ABSTRACT. In the redshift range 100<(1+z)<137, the > cosmic microwave background (CMB) had a temperature of 273-373K (0-100 > degrees Celsius), allowing early rocky planets (if any existed) to have > liquid water chemistry on their surface, and be habitable, irrespective of > their distance from a star. In the standard LCDM cosmology, the first > star-forming halos within our Hubble volume started collapsing at these > redshifts, allowing the chemistry of life to possibly begin when the > Universe was merely 10-17 million years old. The possibility of life > starting when the average matter density was a million times bigger than it > is today argues against the anthropic explanation for the low value of the > cosmological constant. >
Where are all the "metals" (elements heavier than Boron) supposed to come from to form these rocky planets? Cheers -- ---------------------------------------------------------------------------- Prof Russell Standish Phone 0425 253119 (mobile) Principal, High Performance Coders Visiting Professor of Mathematics [email protected] University of New South Wales http://www.hpcoders.com.au ---------------------------------------------------------------------------- -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
