HOUSTON – Seven astronauts are eagerly
preparing for a busy construction flight to the International Space Station
(ISS), with just over one month remaining until their planned launch aboard NASA's
shuttle Discovery.
"This is an
exciting moment for any crew," shuttle commander Pamela Melroy said Friday.
Melroy and
her crewmates said they are looking forward to their planned Oct. 23 launch on NASA's
STS-120 mission to deliver a new connecting node to the ISS and move an
older solar array segment to the station's port-most side.
That Port 6
solar array module relocation, which will be completed during the third of up
to five planned spacewalks during Discovery's two-week spaceflight, will likely
be among the most challenging tasks of the mission, the astronauts said.
"That is a
very complex activity," said mission specialist Stephanie Wilson, the lead STS-120
robotic arm operator, in a press briefing here at the Johnson Space Center. "We hope it will go smoothly, but perhaps it will go differently."
In addition
to Melroy and Wilson, shuttle pilot George Zamka, mission specialists Scott Parazynski,
Doug Wheelock, Daniel Tani and Paolo Nespoli – of the European Space Agency –
will launch into space aboard Discovery during the October mission. Tani will
stay aboard the ISS to relieve fellow NASA astronaut Clayton Anderson as a
member of the station's Expedition 16 crew.
Melroy said
she and her crew were confident in recent
repairs to fix cracked insulation on Discovery's fuel tank. Engineers
discovered the cracks after a piece of fuel tank debris dinged
the Endeavour orbiter during its launch last month.
"I have a
lot of confidence in our tank," Melroy said. "I'm hopeful that everything is
going to go well."
The shuttle
commander stressed that NASA's astronaut corps is filled with dedicated
professionals, despite poor publicity stemming from the arrest of former
spaceflyer Lisa Nowak and anonymous allegations of alcohol abuse earlier this
year.
"I don't
think that you could possibly set a higher standard for us than what we set for
ourselves," Melroy said.
For
Parazynski, Discovery's launch will mark his fifth flight into space and likely
be one to remember.
"In a sense,
there's a sensory overload," Parazynski said, adding that each shuttle flight
has allowed him to absorb more of the spaceflight experience. "It's going to be magical...wonderful."
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