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  • Selfsim's Avatar
    2018-Aug-01, 11:12 PM
    I think the melting/freezing cycles of the polar regions (seasonal and orbital obliquity) may, perhaps, be more relevant to the polar liquid water...
    28 replies | 737 view(s)
  • Selfsim's Avatar
    2018-Aug-01, 10:54 PM
    'Young, small-scale surface features in Meridiani Planum, Mars: A possible signature of recent transient liquid and gas emissions. Horne, David J,...
    28 replies | 737 view(s)
  • Selfsim's Avatar
    2018-Aug-01, 10:47 PM
    Hmm .. interesting .. Thanks for those links there, Roger E. Moore. This one caught my eye in particular: 'The Effect of Gamma Radiation on Mars...
    28 replies | 737 view(s)
  • Selfsim's Avatar
    2018-Aug-01, 01:09 AM
    Extant to the soil:
    28 replies | 737 view(s)
  • Selfsim's Avatar
    2018-Jul-31, 10:25 PM
    I think we might be getting a little carried away with the idea that perchlorates are present subsurface .. Firstly, the perchlorate is only pure...
    28 replies | 737 view(s)
  • Selfsim's Avatar
    2018-Jul-28, 09:29 AM
    Hmm .. interesting .. this paper seems to also confirm what kzb said in post #6. Acetate, I would imagine, would not be particularly easy to come...
    28 replies | 737 view(s)
  • Selfsim's Avatar
    2018-Jul-28, 03:39 AM
    Ok .. fair enough then .. (the nomenclature point taken). So what would be the products of this reaction (so we can name the lifeform) .. and also...
    28 replies | 737 view(s)
  • Selfsim's Avatar
    2018-Jul-26, 11:09 PM
    I suppose the soil ph leaning towards alkaline also supports what you say here(?) Perchlorateogenic martian life, eh? Perhaps we can put this...
    28 replies | 737 view(s)
  • Selfsim's Avatar
    2018-Jul-26, 04:01 AM
    Why? The comment was pertaining to operational differences between different types of aircraft operating in similar airspace.
    29 replies | 907 view(s)
  • Selfsim's Avatar
    2018-Jul-25, 11:40 PM
    No. (Think you might be grasping at straws there)
    29 replies | 907 view(s)
  • Selfsim's Avatar
    2018-Jul-25, 09:13 PM
    Hmmm .. interesting find but I don't think this discovery necessarily contradicts much of what is said in the OP study. In fact, if anything, it...
    28 replies | 737 view(s)
  • Selfsim's Avatar
    2018-Jul-25, 07:47 AM
    An interesting study paper and article recently showed up: Paper: Constraints on the Metabolic Activity of Microorganisms in Atacama Surface Soils...
    28 replies | 737 view(s)
  • Selfsim's Avatar
    2018-Jul-25, 06:29 AM
    Of course. Different methods of propulsion through the atmosphere present vastly different ranges of operational issues. Compare your rocket with...
    29 replies | 907 view(s)
  • Selfsim's Avatar
    2018-Jul-24, 04:21 AM
    No .. not really. Cassini had an extensive buildup of forebear probe technologies. Can you name anywhere else where integrated quadcopter...
    29 replies | 907 view(s)
  • Selfsim's Avatar
    2018-Jul-24, 01:36 AM
    In my opinion, assured success in achieving the New Frontiers program goals, is way more important than experimenting with 'you beaut quantum leap'...
    29 replies | 907 view(s)
  • Selfsim's Avatar
    2018-Jul-23, 08:11 AM
    Dragonfly is more than a probe to study 'a range of environments'. It targets assessing Titan's microbial habitability and testing for any...
    29 replies | 907 view(s)
  • Selfsim's Avatar
    2018-Jul-23, 04:18 AM
    Ha! you're right! What a classic! .. (You deserve a beer for that one! :) ) And its a direct quote of what Grinspoon is supposed to have said,...
    29 replies | 907 view(s)
  • Selfsim's Avatar
    2018-Jul-23, 03:05 AM
    Therein lies Grinspoon's point .. ie: the relevant operating requirements information, (environmental), is currently insufficient for being able to...
    29 replies | 907 view(s)
  • Selfsim's Avatar
    2018-Jul-22, 11:07 PM
    The Dragonfly probe cannot have been designed with the necessary detailed fore-knowledge of the physical nature of its target samples. Its ability...
    29 replies | 907 view(s)
  • Selfsim's Avatar
    2018-Jul-22, 11:11 AM
    Yes .. and don't forget that moving from brushed DC to outrunner motors dramatically increased the torque and efficiency of power conversion. I think...
    12 replies | 326 view(s)
  • Selfsim's Avatar
    2018-Jul-22, 09:54 AM
    Except the Dragonfly probe is completely untested and thus its ability to sample different environments might be not much more than wishful thinking....
    29 replies | 907 view(s)
  • Selfsim's Avatar
    2018-Jul-21, 11:43 PM
    I agree. Nonetheless, Titan still represents some interest on the search for exo-life radar. I think this means that in the case of Titan,...
    29 replies | 907 view(s)
  • Selfsim's Avatar
    2018-Jul-21, 10:06 AM
    This article recently appeared in Astrobiology magazine: WHERE TO SEARCH FOR SIGNS OF LIFE ON TITAN: .. which is then followed by lots of...
    29 replies | 907 view(s)
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