They look like carbon to me
Check this out:
Carbon - Wikipedia, the free encyclopedia
...Carbon is the
fourth most abundant element in the universe by mass after
hydrogen,
helium, and
oxygen. It is present in all known
lifeforms, and in the human body carbon is the second most abundant element by mass (about 18.5%) after oxygen.
[7] This abundance, together with the unique diversity of
organic compounds and their unusual polymer-forming ability at the temperatures commonly encountered on
Earth, make this element the chemical basis of all known
life.
Oh, now I know it's parts of the space shuttle and the Morgs are from outer space!!
(Really there is a theory about that)
Katinka