Donald
Pettit
is
a
chemical
engineer
and
NASA
astronaut.
Selected
by
NASA
in
April
1996,
Dr.
Pettit
reported
to
the
Johnson
Space
Center
in
August
1996.
A
veteran
of
three
spaceflights,
Dr.
Pettit
has
logged
more
than
370
days
in
space
and
over
13
EVA
(spacewalk)
hours
in
3
flights. Expedition
6
(November
23,
2002
to
May
3,
2003)
was
his
first
spaceflight
as
NASA
International
Space
Station
Science
Officer.
On
Expedition
30/31
(December
21,
2011
to
July
1,
2012)
he
created
the
incredible Star
Trails images
by
compositing
a
series
of
images
photographed
from
a
mounted
camera
on
the
International
Space
Center. Dr.... Read More
Pettit
earned
his Doctorate
in
Chemical
Engineering
from
the
University
of
Arizona
in
1983.