From: '''newspam'''@nonad.co.uk   
      
   On 29/12/2025 16:04, john larkin wrote:   
   > On Mon, 29 Dec 2025 18:43:12 +1100, Bill Sloman    
   > wrote:   
   >   
   >> On 29/12/2025 3:17 am, john larkin wrote:   
   >>> On Mon, 29 Dec 2025 03:08:19 +1100, Bill Sloman    
   >>> wrote:   
      
   >>>> John's not entirely correct. There are meteorites that have fallen to   
   >>>> earth that seem to have been kicked off Mars.   
   >>>   
   >>> "Seem to" !   
   >>>   
   >>> The theory is good for selling museum tickets.   
   >>   
   >> As the wikipedia page points out, the trace element profiles match those   
   >> seen by the Mars rover.   
   >>   
   >> It's be better founded theory than you want to acknowledge, probably   
   >> because you haven't got a clue about the science that backs it up.   
   >   
   > Oh, I've worked with TOF atom probe spectroscopy and backscatter   
   > analysis and analytical NMR and all sorts of exotic physics.   
   > Physiscists need help with circuits.   
   >   
   > But a lot of the solar system has rocks with similar isotopic content.   
   > Declaring a meteorite to be a chunk knocked of Mars is a real   
   > hand-waver.   
      
   Not really. The oxygen isotopic signature on Mars is different enough to   
   recognise Mars rocks. Although that doesn't stop charlatans on eBay   
   selling Mars meteorites that are just similar looking Earth rocks.   
      
   Anyone with a stable isotope MS or a noble gas MS would be able to test   
   the gasses in inclusions and see old Martian atmosphere if it is real.   
      
   --   
   Martin Brown   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)