[meteorite-list] [Fwd: Re: Will space cities get pelted ?]

From: Walter Branch <branchw_at_meteoritecentral.com>
Date: Thu Apr 22 10:01:36 2004
Message-ID: <02bf01c21e99$195007a0$cbd83fd0_at_cc516468a>

Hello John and List,

Slight correction. Because of the Challenger accident, LDEF actually stayed
in space about five and a half years! It was retrieved shortly before it
would have entered the Earth's atmosphere.

-Walter
-----------------------------------------------
Walter Branch, Ph.D.
Branch Meteorites
322 Stephenson Ave., Suite B
Savannah, GA 31405 USA
www.branchmeteorites.com
----- Original Message -----
From: "John Reed" <john_at_findalltrades.com>
To: <meteorite-list_at_meteoritecentral.com>
Sent: Friday, June 28, 2002 2:07 AM
Subject: [meteorite-list] [Fwd: Re: Will space cities get pelted ?]


>
>
> -------- Original Message --------
> Subject: Re: Will space cities get pelted ?
> Date: Thu, 27 Jun 2002 09:36:30 -0700
> From: "Alan Rubin" <aerubin_at_ucla.edu>
> Organization: UCLA
> To: "John Reed" <john_at_findalltrades.com>
> References: <3D1B3B4A.822F9849_at_findalltrades.com>
>
> NASA put a satellite in orbit called the Long-Duration Exposure
> Facitility (LDEF) to see how many impacts it experienced. It
> experienced a lot of micrometeorite impacts during the 13 or so
> months it was in space. Shielding could protect a space habitat
> from that, but the Earth's atmosphere also protects us against
> much bigger rocks; many break apart in the atmosphere and many
> slow down due to ablation and atmospheric drag. A space city
> could only rely on shielding to protect it. It would indeed be a
> formidable problem.
> Alan Rubin
>
> ----- Original Message -----
> From: John Reed <john_at_findalltrades.com>
> To: Alan Rubin <aerubin_at_ucla.edu>
> Sent: Thursday, June 27, 2002 9:20 AM
> Subject: Will space cities get pelted ?
>
>
> > I believe that some day people will move to a "space satellite"
> type
> > city.(say the satellite has a surface area of approx. 1 sq. mile
> and it
> > was in orbit around earth) would you expect that meteorite
> impacts
> > would be problematic? I was thinking even one the size of a golf
> ball
> > traveling at around 20k miles per hr and if it hits something
> > weightless would that be catastrophic?
> > Thanks for your help
> > John
> >
>
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Received on Fri 28 Jun 2002 07:44:02 AM PDT