Space & Astronomy/Space and Astronomy (October 1993).iso/mac/TEXT_ZIP/spacedig/V16_5/V16NO512.ZIP/V16NO512

Internet Message Format | 1993-07-13 | 28KB

Date: Sun,  2 May 93 06:05:58
From: Space Digest maintainer <[e-mail]>
Reply-To: [e-mail]
Subject: Space Digest V16 #512
To: Space Digest Readers
Precedence: bulk


Space Digest                Sun,  2 May 93       Volume 16 : Issue 512

Today's Topics:
                   *** FTP images ASTRO server ***
           ASTRONAUTS---What does weightlessness feel like?
      Boeing TSTO (Was: Words from Chairman of Boeing) (2 msgs)
                      Combo Propulsion System!?
                       Deployable Space Dock..
          Electrical Spacecraft via Magnetic field of earth?
                 Gamma Ray Bursters. WHere are they.
                      Hall Generators from USSR
             HST Servicing Mission Scheduled for 11 Days
                       Human Habitale Planets?
                          Internet resources
               Kaliningrad (Was: Tsniimach Enterprise)
                   moon image in weather sat image
          Mothership for Flybys and cutting costs.. (2 msgs)
                    Philosophy Quest.  How Boldly?
      Revival of San Marco? (was Re: Commercial Space News #22)
                             Rocket Types
                     Single Launch Space Station
                 Teflon (Re: Long term Human Missions
                     temperature of the dark sky

    Welcome to the Space Digest!!  Please send your messages to
    "[e-mail]", and (un)subscription requests of the form
    "Subscribe Space <your name>" to one of these addresses: listserv@uga
    (BITNET), rice::boyle (SPAN/NSInet), utadnx::utspan::rice::boyle
    (THENET), or [e-mail] (Internet).
----------------------------------------------------------------------

Date: Sat, 1 May 1993 14:04:00 GMT
From: Frank ROUSSEL <[e-mail]>
Subject: *** FTP images ASTRO server ***
Newsgroups: sci.space

I commend everybody to look at the FTP site 'ftp.cicb.fr'
-> Ethernet address 129.20.128.2 <-
in the directory /pub/Images/ASTRO:
there are lots of images (all of kinds in astronomy subject)
especially in GIF format and a NEW ! directory of some JPL animations

For your comfort, README files in all subdirectories give size and
description of each image, and a 7 days' newer images' list is in READMENEW

Note: you can connect it as 'anonymous' or 'ftp' user, then the quota
      for each is 8 users connected in the same time.
      So, if the server responds you "connection refused", be patient !

2nd note: this site is reachable by Gopher at 'roland.cicb.fr'
          -> Ethernet address 129.20.128.27 <-
          in 'Divers serveurs Ftp/Le serveur ftp du CRI-CICB/Images/ASTRO'

If you have any comments, suggestions, problems,
then you can contact me at E-mail '[e-mail]'

Hope you enjoy it !

------------------------------

Date: Sat, 1 May 1993 17:00:23 GMT
From: [e-mail]
Subject: ASTRONAUTS---What does weightlessness feel like?
Newsgroups: sci.space,sci.astro

: In article <[e-mail]>, [e-mail] (Jerry Liebelson) writes...
: > I want to know what weightlessness actually FEELS like. For example, is
: >there a constant sensation of falling?

Ron Baalke ([e-mail]) replied:
: Yes, weightlessness does feel like falling.  It may feel strange at first,
: but the body does adjust.  The feeling is not too different from that
: of sky diving.

I'm no astronaut, but I've flown in the KC-135 several times.  I'll
tell you about my first flight.

At the on-set of weightlessness, my shoulders lifted and my spine
straightened.  I felt a momentary panic, and my hands tried to grab
onto something (like the strap keeping me firmly against the floor)
to prevent me from falling; I remember conciously over-ruling my
involuntary motions.  My ears felt (not heard) a rush and I could
feel fluid moving in my head (like when you get up from bed while
you have a cold).

At that point, I ceased to concentrate on my physiological response,
since I had some science to do.  I was busy keeping my experiment
going and keeping track of all the parts during the "return" of
gravity and subsequent 1.8-G pull-out, so I didn't really pay
attention to physiology at that time.

After about 5 parabolas, I discovered that I was performing one
of the tricks I've discovered to keep myself from getting motion
sickness; I was keeping my head very still and moving very slowly
-- all except my hands and arms, which needed to be in rapid,
concious motion for my experiment.  During the pull-out to
parabola 5, my queasiness finally started to get to me, and I
had to use one of those air-sickness bags.  I was basically
useless for the rest of that flight, so I went to the seats in
the back of the plane while my partner (whom I drafted for just
this purpose) kept working on the experiment while I was ill.
(He was a vetran Vomit Comet rider, one of those anomalous
people who don't get sick on the thing.)

I didn't think of it as a "constant sensation of falling" so
much as like swimming in air.  It's very close to the sensations
I feel when I'm scuba diving and I turn my head down and fins up.

Jerry:
: >And what is the motion sickness
: >that some astronauts occasionally experience?

Ron:
: It is the body's reaction to a strange environment.  It appears to be
: induced partly to physical discomfort and part to mental distress.
: Some people are more prone to it than others, like some people are more
: prone to get sick on a roller coaster ride than others.  The mental
: part is usually induced by a lack of clear indication of which way is
: up or down, ie: the Shuttle is normally oriented with its cargo bay
: pointed towards Earth, so the Earth (or ground) is "above" the head of
: the astronauts.  About 50% of the astronauts experience some form of
: motion sickness, and NASA has done numerous tests in space to try to
: see how to keep the number of occurances down.

I'm a volunteer in JSC's Space Biomedical Laboratory where they do,
among other things, some of the tests Ron mentions.  I was in one
called the Pre-flight Adaptation Trainer, which consisted of a chair on
a several-degree-of-freedom motion base with moving geometric visual
aids.  The goal was to measure the victim's^H^H^H^H^H^H^H^H subject's
responses and subjective physiological descriptions and see if repeated
exposure to this environment could reduce future motion sickness
symptoms.

Jerry --

I don't know of any former or active-duty astronauts who personally
read this group.  I know that Bruce McCandless's office had been
waiting anxiously for the Space Station Redesign option I posted
last week, but I don't think Bruce reads the group himself.

-- Ken Jenks, NASA/JSC/GM2, Space Shuttle Program Office
      [e-mail]  [phone]

     "The man who makes no mistakes does not usually make
      anything."
        -- Edward John Phelps, American Diplomat/Lawyer (1825-1895)

------------------------------

Date: Sat, 1 May 1993 15:11:25 GMT
From: "Richard A. Schumacher" <[e-mail]>
Subject: Boeing TSTO (Was: Words from Chairman of Boeing)
Newsgroups: sci.space

[Description of Boeing study of two-staged spaceplane using
supersonic ramjets deleted.]

In other words, Boeing is not seriously thinking about
reliable, less-expensive access to orbit. They just like
to fool around with exotic airplanes.

------------------------------

Date: 1 May 1993 12:32:47 -0400
From: Matthew DeLuca <[e-mail]>
Subject: Boeing TSTO (Was: Words from Chairman of Boeing)
Newsgroups: sci.space

In article <[e-mail]> [e-mail] (Richard A. Schumacher) writes:

>In other words, Boeing is not seriously thinking about
>reliable, less-expensive access to orbit. They just like
>to fool around with exotic airplanes.

This presupposes that no supersonic ramjet aircraft/spacecraft can be reliable
or low-cost.  This is unproven.
--
Matthew DeLuca
Georgia Institute of Technology, Atlanta Georgia, 30332
uucp:      ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!matthew
Internet: [e-mail]

------------------------------

Date: Sat, 1 May 1993 12:39:16 GMT
From: [e-mail]
Subject: Combo Propulsion System!?
Newsgroups: sci.space

How hard or easy would it be to have a combo mission such as a solar sail on
the way out to the outer planets, but once in near to orbit to use more normal
means..
Seems that everyone talks about using one system and one system only per
mission, why not have more than one propulsion system? Or did I miss
something.. ?? or did it die in committee?
==
Michael Adams, [e-mail] -- I'm not high, just jacked

------------------------------

Date: Sat, 1 May 1993 17:17:05 GMT
From: [e-mail]
Subject: Deployable Space Dock..
Newsgroups: sci.space

: In article <[e-mail]> [e-mail] writes:
: >Why not build a inflatable space dock.

Henry Spencer ([e-mail]) wrote:
: If you're doing large-scale satellite servicing, being able to do it in
: a pressurized hangar makes considerable sense.  The question is whether
: anyone is going to be doing large-scale satellite servicing in the near
: future, to the point of justifying development of such a thing.

That's a mighty fine idea.  But since you asked "Why not," I'll
respond.

Putting aside the application of such a space dock, there are other
factors to consider than just pressurized volume.  Temperature control
is difficult in space, and your inflatable hangar will have to
incorporate thermal insulation (maybe a double-walled inflatable).
Micrometeoroid protection and radiation protection are also required.
Don't think this will be a clear plastic bubble; it's more likely
to look like a big white ball made out of the same kind of multi-layer
fabric that soft-torso space suits are made out of today.

Because almost all manned space vessels (Skylab, Mir, Salyut) used
their pressurization for increased structural rigidity, even though
they had (have) metal skins, they still kind of qualify as inflatable.

The inflation process would have to be carefully controlled.  The
space environment reduces ductility in exposed materials (due to
temperature extremes, monotomic Oxygen impingement, and radiation
effects on materials), so your "fabric" may not retain any flexibility
for long.  (This may not matter.)  Even after inflation, pressure
changes in the hangar may cause flexing in the fabric, which could
lead to holes and tears as ductility decreases.

These are some of the technical difficulties which the LLNL proposal
for an inflatable space station dealt with to varying degrees of
success.

-- Ken Jenks, NASA/JSC/GM2, Space Shuttle Program Office
      [e-mail]  [phone]

     "Good ideas are common -- what's uncommon are people who'll
      work hard enough to bring them about." -- Ashleigh Brilliant

------------------------------

Date: Sat, 1 May 1993 12:44:41 GMT
From: [e-mail]
Subject: Electrical Spacecraft via Magnetic field of earth?
Newsgroups: sci.space

Okay, the earth has a magnetic field (unless someone missed something?)

Okay if you put a object in the earth magnetic field, it produces electricty..

Now the question. Can you use electricity to power a space/low earth orbit
vehicle? and i fyou can, can you use the magnetic field of the earth to power
it??
Can the idea of a "dragless" satellite be used in part to create the electrical
field?

After all the dragless satellite is (I might be wrong), a suspended between to
pilons, the the pilons compensate for drag.. I think I know what I want to say,
just not sure how to say it..

A dragless satellite sounds interestingly enough liek a generator.

==
Michael Adams, [e-mail] -- I'm not high, just jacked

Sorry for spelling, have not brought windows 3.1 online with my modem and comm
program. YET!! almos tthere..

------------------------------

Date: Sat, 1 May 1993 15:16:01 GMT
From: "Richard A. Schumacher" <[e-mail]>
Subject: Gamma Ray Bursters. WHere are they.
Newsgroups: sci.space

You should have been following the discussion of GRBs
going on in sci.astro. It's been discussed in some detail,
with references even.

------------------------------

Date: Sat, 1 May 1993 07:01:07 GMT
From: "TAMOOR A. ZAIDI" <[e-mail]>
Subject: Hall Generators from USSR
Newsgroups: sci.astro,sci.space,sci.physics

Hi Folks,

              Last year America bought two  "Hall Generators" which are
used as thrusters for space vehicles from former USSR,if I could recall
correctly these devices were sent to JPL,Pasadena labs for testing and
evaluation.

              I am just curious to know  how these devices work and what
what principle is involved .what became of them.There was also some
controversy that the Russian actually cheated,sold inferior devices and
not the one they use in there space vehicles.

Any info will be appreciated...
  ok   {                         Thank{ in advance...
Tamoor A Zaidi
Lockheed Commercial Aircraft Center
Norton AFB,San Bernardino

[e-mail]
[e-mail]

------------------------------

Date: Sat, 1 May 1993 13:44:20 GMT
From: "Richard A. Schumacher" <[e-mail]>
Subject: HST Servicing Mission Scheduled for 11 Days
Newsgroups: sci.space,sci.space.shuttle,sci.astro

In <1rs0au$[e-mail]> [e-mail] (Pat) writes:

>How different would the contamination threat of a small manuevering tug
>be from that of the Shuttle and it's OMS engines??????

The aperture door will be shut during reboost. Using the shuttle
means that there will be someone nearby to pry the door open again
if it should stick.



>I just figured, if GOldin wants to really,  prove out faster, cheaper
>better,   have some of the whiz kids  slap together an expendable
>space manuevering tug  out of a BUs1,  and use that for the re-boost.

It's clear that the "whiz kids" are not running the show. In any
case it's not prudent to stick a "slapped together" explosive device
on the end of a billion dollar asset that you'd like to see again.
(Wiseacres might say that a shuttle is a slapped-together explosive
device, but at least it's had some testing.)

------------------------------

Date: Sat, 1 May 1993 12:28:10 GMT
From: [e-mail]
Subject: Human Habitale Planets?
Newsgroups: sci.space

Habital planets are also dependent on what kind of plant life can be grown..
and such.. Length of growing season (that is if you want something more than
VAT food, argh, Id ratehr eat an MRE for  along period of time).

I know in Fairbanks (Furbanks to some) the winter can get to -60 or so F, but
in the summer can get to +90 and such.. I know of worse places..

Incans and Sherpa and other low pressure atmosphere and such are a limit in
human adaptability(someone mentioend that Incan woman must come to lower
elevations to have babies brought to term? true?) I remember a book by
Pourrnelle I think that delt with a planet was lower density air..

I wonder what the limit on the other end of atmospheres?

I am limiting to human needs and stresses and not alien possibilties..
Thou aliens might be more adapted to a totally alien to human environment, such
as the upper atmosphere of Jupiter or??

Almost makes bio-engineered life easy...

==
Michael Adams, [e-mail] -- I'm not high, just jacked

------------------------------

Date: 1 May 93 02:58:47 GMT
From: James Thomas Green <[e-mail]>
Subject: Internet resources
Newsgroups: sci.space

[e-mail] Pontificated:
>I am taking a course entitled "Exploring Science Using Internet".
>For our final project, we are to find a compendium of Internet resources
>dealing with a science-related topic. I chose Astronomy. Anyway, I was
>wondering if anyone out there knew of any interesting resources on Internet
>that provide information on Astronomy, space, NASA, or anything like that.
>

One of the sci.space FAQ postings deal with this.  It's archived
somewhere.  Perhaps someone can post where it is (I don'
remember).


/~~~(-: James T. Green :-)~~~~(-: [e-mail] :-)~~~\
|I didn't do it! Nobody saw me do it! You can't prove anything!    |

|                                   <Bart Simpson>         |

------------------------------

Date: 29 Apr 93  22:43:22
From: [e-mail]
Subject: Kaliningrad (Was: Tsniimach Enterprise)
Newsgroups: sci.space

F.Baube[tm] writes:
>> Tsniimach Enterprise is described as a ex-military
>>establishment, ...  They are located near the NPO Energia
>>facility in Kaliningrad, outside of Moscow.
>
>If this facility is in Kaliningrad, this is not near Moscow, it is
>in fact the ex-East Prussian Konigsberg, now a Russian enclave on
>the Baltic coast.  It is served by ships and rail, and the intrepid
>traveller in Europe would find it accessible and might even want to
>try to arrange a tour (??).

   Hmm... there must be two towns with the same name.  Kaliningrad,
located just North of Moscow is correct.  It is the home of several
Russian space enterprises, including NPO Energia, Krunichev, Fakel,
and Tsniimach.  The main Russian manned spacecraft control facility
is also located here.
   Kaliningrad is easily reachable by auto from Moscow, and tours
can be arranged.  Call ahead though, there are still armed military
guards at many of these facilities -- who don't speak English,
aren't well paid, and are rather bored.
   It's a very popular destination with Western space industry
types at the moment.
 ----------------------------------------------------------------
 Wales Larrison                         Space Technology Investor

--- Maximus 2.01wb

------------------------------

Date: Sat, 1 May 1993 12:20:14 EDT
From: [e-mail]
Subject: moon image in weather sat image
Newsgroups: sci.astro,sci.space,sci.geo.meteorology,sci.geo.geology

In article <[e-mail]>, [e-mail] (William E.
O'Shaughnessy) says:
>
>If you brighten up the dark part of CV043015.GIF with your viewer you
>will see two other objects near the upper left part of the moon.
>One is actually between the weather satellite and the moon.
>
>                            Bill O'Shaughnessy
>
What are those other objects?  UFOs????

------------------------------

Date: Sat, 1 May 1993 13:13:12 GMT
From: [e-mail]
Subject: Mothership for Flybys and cutting costs..
Newsgroups: sci.space

Getting wierd again?

Okay we have figure out that a mission specifically to Pluto is to large and to
expensive..

Okay what about launching one probe with multiple parts.. Kind of liek the old
MIRV principle of old Cold War Days.
Basically what I mean is design a mother ship that has piggy backed probes for
different missions,namely different planets. Each probe would be tied in with
the mother ship (or earth as the case may be).. This is good when and if we go
for Mars (the MArs mission can act as either Mother ship or relay point for the
probes.

Also the mother ship would be powered (if not the Mars Mission) by a normal
propulsion, but also a solar sail (main reason for solar sail race is to see
what can be done and autmoated?) the sail would get the probes to were they
needed.. I know the asteroid/meteor clouds (and such) might get in the way of a
Sail??

Main reasonf ro mother ship idea is to make it more economoical to send
multiple probes/mission/satellites/exploreres to different places and cut
costs..
The probes could do fly bys or ?? we shall see...

==
Michael Adams, [e-mail] -- I'm not high, just jacked

------------------------------

Date: 1 May 1993 10:01:34 -0400
From: Matthew DeLuca <[e-mail]>
Subject: Mothership for Flybys and cutting costs..
Newsgroups: sci.space

In article <[e-mail]> [e-mail] writes:
>Getting wierd again?

Or perhaps even weird?

>Okay we have figure out that a mission specifically to Pluto is to large and to
>expensive..

Hmmm, you might want to read this group more carefully; there's been a good
amount of discussion of the proposed Pluto Fast Flyby (PFF) mission that is
specifically designed to be small and cheap.
--
Matthew DeLuca
Georgia Institute of Technology, Atlanta Georgia, 30332
uucp:      ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!matthew
Internet: [e-mail]

------------------------------

Date: Sat, 1 May 1993 05:36:56 GMT
From: Henry Spencer <[e-mail]>
Subject: Philosophy Quest.  How Boldly?
Newsgroups: sci.space

In article <[e-mail]> [e-mail] (Bob Kierski) writes:
>...Over the years we have decided that certain
>cultures need improvements.  The native americans is a good example.  Prior
>to our attempt to civilize them, the native american culture had very
>little crime, no homelessnes, no poverty...

This is, shall we say, an overly-broad statement.  In particular, are you
referring to the native American culture that existed in 1400, or the one
that existed in 1800?  (Simplify things by assuming we're talking about
the eastern US rather than the whole continent.)  Given that those were
*radically* different cultures, which one are you referring to?

>...If we encounter life elsewhere, do we tell them they have to live in
>houses, farm the land and go to church on sunday?

Note that the pre-Columbian native Americans, east of the Mississippi,
did all of these things.  (Well, maybe not "on Sunday", but they did
have organized religions, not to mention cities and governments.)  If
you are judging the native Americans by the tribal culture that existed
in 1800, you might want to read an account of the De Soto expedition
to find out what pre-Columbian native American culture, at least in the
more civilized parts of the continent, was like.
--
SVR4 resembles a high-speed collision   | Henry Spencer @ U of Toronto Zoology
between SVR3 and SunOS.    - Dick Dunn  |  [e-mail]  utzoo!henry

------------------------------

Date: Sat, 1 May 1993 04:02:52 GMT
From: Josh Hopkins <[e-mail]>
Subject: Revival of San Marco? (was Re: Commercial Space News #22)
Newsgroups: sci.space

[e-mail] (Bill Higgins-- Beam Jockey) writes:

>In article <[e-mail]>, [e-mail] writes:
>> COMMERCIAL SPACE NEWS/SPACE TECHNOLOGY INVESTOR NUMBER 22
>[...]
>>    Other commercial launch site ventures -- including those at
>> Woomera, Poker Flat, Cape York, White Sands, Alabama Off-Shore
>> Platform, Hawaii, and Vandenberg have to also be judged against
>> these criteria.  In my opinion, some of these ventures are flying
>> on hope and speculation, and not on sound financial grounds.]

>This reminds me... my fuzzy brain recalls that somebody was thinking
>of reviving the San Marco launch platform off the coast of Kenya,
>where the Copernicus satellite was launched around 1972.  Is this
>true, or am I imagining it?  Possibly it's connected with one of the
>Italian programs to revive the Scout in a new version.

>That old platform must be getting pretty rusty, and there ain't a lot
>of infrastructure to go with it...

My information shows that the last San Marco launch was 1988.  There seem to
have been a total of seven before that.  I seem to recall that someone, either
ASI or the University of Rome (?) includes money in their annual budget for
maintainance of the platforms (there are actually two).

The Italians have been spending money to develop an advanced Scout.  However,
recent events in the Italian space program, and the Italian government overall
make me skeptical that this will get off the ground in the near future.
--
Josh Hopkins                                          [e-mail]
            "Find a way or make one."
                 -attributed to Hannibal

------------------------------

Date: Fri, 30 Apr 1993 16:17:21 GMT
From: Jay Brinkmeyer <[e-mail]>
Subject: Rocket Types
Newsgroups: sci.space

in article <1rpv9o$[e-mail]>, [e-mail] (Glen Justin Balmer) says:
> Message-ID: <1rpv9o$[e-mail]>
...
> If not, has anybody heard of the particle propolsion system?
>
> Thanx. 8-)
>
> Glen Balmer...
>
I believe that my former employer Hughes Aircraft Company has a working Ion
Propulsion system for satellites.

Jay Brinkmeyer

------------------------------

Date: Sat, 1 May 1993 16:34:23 GMT
From: [e-mail]
Subject: Single Launch Space Station
Newsgroups: sci.space

: Andy Cohen <[e-mail]> writes:
: >the Single Launch Core Station concept.  A Shuttle external tank and solid
: >rocket boosters would be used  to launch the station into orbit.  Shuttle
: >main engines would be mounted to the tail of the station module for launch
: >and jettisoned after ET separation.

Karl Dishaw ([e-mail]) replied:
: Why jettison the SSMEs?  Why not hold on to them and have a shuttle
: bring them down to use as spares?

One performance reason comes to mind: if you jettison the SSME's, you
don't have to drag them with you when you perform your circularization
burn(s).  On-orbit, SSME's are just dead weight, since we don't have an
SSME H2/O2 pressurization mechanism which works in zero-G.  This means
that you can't use them for re-boost or anything else.  Dead weight has
a couple of advantages, but more disadvantages.

Throw-away SSME's might let us use some of the old SSME's which are not-
quite-man-ratable.  But I doubt we'd do that; the cost of a launch
failure is too high.

-- Ken Jenks, NASA/JSC/GM2, Space Shuttle Program Office
      [e-mail]  [phone]

     "...Development of the space station is as inevitable as
      the rising of the sun." -- Wernher von Braun

------------------------------

Date: 1 May 1993 02:40:11 -0700
From: Dan Tilque <[e-mail]>
Subject: Teflon (Re: Long term Human Missions
Newsgroups: sci.space,sci.space.shuttle,sci.astro

[e-mail] (Alejo Hausner) writes:
>rek@siss81 (Robert Kaye) writes:
>>
>>Just a few contributions from the space program to "regular" society:
>>
>>2.    Teflon (So your eggs don't stick in the pan)
>
>Sorry to split hairs, but I just read in "The making of the atomic
>bomb"(*) that teflon was developed during world war 2.  A sealant was
>needed for the tubing in which uranium hexafluoride passed as it was
>gradually enriched by difussion.  UF6 is very corrosive, and some very
>inert yet flexible material was needed for the seals.

I think you're both right.  Teflon was actually discovered by accident
before WWII.  From what I've heard, they had some chemical (I assume it
was tetrafluoroethylene) in a tank and but the valve got gummed up.
Cutting it open revealed that it had polymerized.

The material was useful for seals, but it had a major problem for, say
the linings of vessels: it wouldn't stick to metal.  What the space
program did was to find a way to get it to stick.  Thus we had no-stick
frypans on the market in the late '60s.

---
Dan Tilque    --     [e-mail]

------------------------------

Date: Sat, 1 May 1993 14:36:19 GMT
From: "Richard A. Schumacher" <[e-mail]>
Subject: temperature of the dark sky
Newsgroups: sci.astro,sci.space

In <[e-mail]> [e-mail] (Steve Willner) writes:

>cooked if that were the case.  In any event, the energy density of
>starlight comes out about the same as that of the microwave
>background, and I believe that to be correct.)


Yeah, what about that? Is this just a weird coincidence? (And
let's not see all the same hands this time, TVF.)

------------------------------

End of Space Digest Volume 16 : Issue 512
------------------------------