Re: Pedro's post & LFM Q & A, online sharing, mission update (excerpt)

From: Sandy Dueck 2nd account <>
Subject: Re: Pedro's post & LFM Q & A, online sharing, mission update (excerpt)
Date: Wed, 8 Oct 1997 18:34:16 -0700 (PDT)

To Pedro & Everyone,

The best way to get your questions answered is to post them to the LFM
site at: Click on the Question Mark "?" icon
and follow the directions from there. Your question will be answered by a
Mars expert in 1-2 weeks.


On Wed, 8 Oct 1997, Jan Wee wrote:

> Dear discuss-lfm members, 
> Welcome to our discussion forum, Pedro! Glad to see you
> posting along with several others who did so in the
> past day!  
> I took the liberty of opening your attached file and 
> re-posting it in full form in case others are not able 
> to open the file and read it.
> Here is Pedro's posting...
> From: <>
> Dear discuss LFM members,
> This is my question: If there is sand in Mars and its 
> atmosphere is extremely thin, which is the origin of that sand ?  
> The barometric pressure on Mars is about 7 (seven) milibars. 
> On the Earth we have 1.012 milibars as normal pressure. That 
> means that the air in Mars is not dense enough to produce 
> erosion on the planet rocks. Could it be that Mars had a 
> heavy atmosphere millions of years ago ?  Or that the sand 
> comes from the erosion of ancient waters  on  that Planet ?
> Many thanks for your answers
>                - Pedro Escudero Elorza -
> Since yours is a question about the formation of sand on 
> Mars you are encouraged to send the question to the LFM Question
> and Answer service.... information about how to do this
> properly is found at:    
> Mars Team members respond to questions from participants 
> of LFM via the Q and A forum.  Questions and answers are 
> posted in the archive for all to utilize and enjoy!
> Be sure to >>>>check the archive BEFORE submitting
> questions!
> This is a great resource for you and your students
> as the information is current and the responses
> are from the Mars Mission TEAM!  What could be better
> than hearing directly from the real experts! :-)
> The archive is found at:
> Here is an example of a Q and A pair from the category
> Mars terrain and geology....
> Is there quicksand on Mars?
> ANSWER from Jeff Plescia on January 31, 1997:
> Probably not. Quicksand is a loose mixture of water and sand.
> There is no liquid water at the surface of Mars; the atmospheric
> pressure is too low and it is too cold. So while there might
> be areas filled with sand, you would not sink out of sight if
> you tried to cross them.
> Jeff Plescia,research scientist and Mars Surveyor Program
> Questions will be accepted from now through the duration 
> of the LFM project. To submit a question, mail it to the 
> following email address: 
> Perhaps members of our discuss-lfm forum might be able to
> contribute a scientific response, but the Q and A is a 
> sure fire way of getting a response from the experts!
> >>>>LET'S DISCUSS...
> Say the word and you are ready to respond! What a great
> group!  
> Thanks Thomas R. of Southern CA for sharing the
> news of the special event on Nov. 13th!  How lucky can
> you be to live near JPL.   What would be super is if any 
> of the folks on this list attending could share your experience
> with all of us via a posting to this list!  Many of us have
> fond memories of Donna (in her lucky red suit) being interviewed on
> CNN July 4th and featured on the Live From Mars telecasts.
> Thanks to Ginny Dexter (who hails from Northern CA),
> Marilyn Kennedy Wall (who hails from the East... VA)
> and Lucy Marske (from the Midwest).  We have covered both
> coasts and midwest with this trio of posts!  Ginny's 
> Weather World's Internet Research form, Marilyn's resource
> sharing, and Lucy's unique Human Mars/MGS aerobraking activity
> gave our forum a jump-start in demonstrating the power
> of online forums!   Thanks to *all* of you.
> 8 October 1997, 12:00 p.m. PDT
> Just a brief excerpt from the JPL's Pathfinder site at
>         http://mars.
> The Mars Pathfinder operations team reestablished communications 
> with the lander on Sol 92 of the mission, after four days of 
> silence from the spacecraft. The team received a transmission 
> from the spacecraft's main transmitter. The signal was detected 
> using the Madrid, Spain 34-meter antenna. 
> For further information on the Mars Pathfinder Mission, 
> please call our Mission Status Report line at 1-800-391-6654.
> Looking forward to more discussion/sharing!
> Jan Wee, discuss-lfm moderator