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Re: Parts of Mars used to be Earth-like

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On Thursday, October 8, 2015 at 6:07:59 PM UTC-7, Sam Wormley wrote:
> Parts of Mars used to be Earth-like
> > http://arstechnica.com/science/2015/10/curiosity-is-climbing-a-martian-mountain-that-used-to-be-a-lake-bottom/
> 
> 
> > One of the joys of geology is painting a picture of a different
> > world--a long-ago world otherwise completely lost to us. If you're a
> > planetary geologist, you have the chance to pull off that trick with
> > a properly different world, one not currently named Earth. Courtesy
> > of Curiosity, the robotic geologist currently exploring Mars, we have
> > a new picture of the history of the crater the rover is roving in.
> >
> > Gale Crater was excavated by an impact event roughly 3.7 billion
> > years ago. Rising over five kilometers from the floor of the crater
> > is Mount Sharp (officially Aeolis Mons). How'd it get there? That
> > question is, in a way, interesting enough that we went there to find
> > out.
> >
> > After landing safely on the plain surrounding Mount Sharp, Curiosity
> > has made its way to the base of the mountain, stopping to smell the
> > rocks along the way. Climbing Mount Sharp takes the rover on a trip
> > through martian history, as the mountain is basically a layer cake of
> > sedimentary rock. A new study published this week by 47 researchers
> > back on Earth focuses on what we've seen so far in the two layers at
> > the base of the cake.
> >
> > In the lower part of the basal layer, there are sandstones as well as
> > some gravelly layers. The sandstones show a pattern called
> > "cross-bedding"--repeated diagonal lines between the top and bottom of
> > a layer. These are the remains of crawling ripples or dunes. In this
> > case they are short ripples deposited by something flowing toward the
> > center of the crater. Together with the presence of the gravels, this
> > points to the action of streams.
> >
> 
> -- 
> 
> sci.physics is an unmoderated newsgroup dedicated
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> community, and physics-related social issues.

Mars never could have had an atmosphere like Earth.It never rained on Mars not even once apon a time.It has the tallest volcano good reason why.43 years ago a lander came down on a huge dust storm,and I was hit by a dust storm driving out of Vegas. Today I was in a swimming pool that has more water in it than all that NASA will ever find on Mars  TreBert

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Parts of Mars used to be Earth-like Sam Wormley <swormley1@gmail.com> - 2015-10-08 20:07 -0500
  Re: Parts of Mars used to be Earth-like The Starmaker <starmaker@ix.netcom.com> - 2015-10-09 00:41 -0700
  Re: Parts of Mars used to be Earth-like "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-10-09 10:33 -0700
    Re: Parts of Mars used to be Earth-like Double-A <double-a3@hush.com> - 2015-10-09 15:11 -0700
      Re: Parts of Mars used to be Earth-like "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-10-11 11:16 -0700
        Re: Parts of Mars used to be Earth-like Double-A <double-a3@hush.com> - 2015-10-11 14:21 -0700
          Re: Parts of Mars used to be Earth-like "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-10-12 09:28 -0700
    Re: Parts of Mars used to be Earth-like "hanson" <hanson@quick.net> - 2015-10-11 08:45 -0700
    Re: Parts of Mars used to be Earth-like gilber34 <fafa@invalid.com> - 2015-10-11 11:09 -0500
    Re: Parts of Mars used to be Earth-like "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-10-12 13:34 -0700
      Re: Parts of Mars used to be Earth-like "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-10-13 15:41 -0700
  Re: Parts of Mars used to be Earth-like Wally W. <ww84wa@aim.com> - 2015-10-11 12:40 -0400
  Re: Parts of Mars used to be Earth-like "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-10-14 16:44 -0700

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