Across the country in Greenbelt, Maryland,

scientists at the Goddard Space Flight Center

are also busy analyzing lunar samples.

Dr. Isidore Adler tells

what his group has found so far.

There is a much higher concentration

of some minerals.

For example,

there is a mineral called ilmenite,

which is an iron titanium oxide,

which appears to be unusually high

in concentration in these rocks.

And it seems to indicate

perhaps, that at some time or other,

the Moon was exposed,

at least these surface materials,

to some rather severe heating.

So these frozen samples

were actually collected

from a region on the Moon

that was in shadow from the Sun.

So it was basically a large boulder.

In the near future,

we're going back to the Moon

and hopefully going to the polar

regions of the Moon,

where some of these regions

are in permanent shadow.

These particular samples

are really great analogs

for what we might expect

to see in the polar regions

when we go back.