Astronaut Scientific Debriefings, 1962-1963

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but · I think this is basically why we refer to the white particles
as · frost because it does remind us of this.
This is what probably
tempts · me• to say that it has to be watero
Cameron -
Do you think the chartreuse ones were maybe the ones that
Glenn· thought actually glowed, didnvt he?
They were lighted
wrong.
Schirra· - I think - well this gets back· to my opinion and I
saw myself on film yesterday at the press conference talking
about it and said that I guess we need some more opinions but we
ha~three opinions now and basically I put two together and made
my · own, but the green I feel is strictly the case of the sunlight
going through this tremendou~ amount of atmosphere at sunriseo
What is left · as a light spectrum is this green -yellow on these
particles.
You can all explain this better than· I can, I am sure ,
but what gets through all this atmosphere would probab1y be this
green- yellow.
I think that in a sense they are not self-illumi ­
nated· but they reflect as if they were self-illuminated.
O'Keefe - Well, if you pass sunlight through a 1:hick layer of
atmosphere then, of course, what you will get will be a red - a
deep red - however, that doesn't necessarily. prove that you are
wrong in what you are saying because the things would be illuminated
in two ways .
They would be illuminated not only by the direct
sunlight~ but also by the scattered· light around the horizon
which· you have photographed at sunrise and the combination of these
two colors might give you a chartreuse as you have said because it
is a double · illumination.
However, there is another possible