The International Space Station's
Kibo laboratory is about to get a new porch, the last big piece of the
outpost's already massive Japanese-built segment.
The porch - a platform for science
research that will be placed outside the station to expose experiments to the
space environment - is set
to be delivered by the space shuttle Endeavour's STS-127 mission.
Endeavour is slated
to launch Saturday at 7:17 a.m. EDT (1117 GMT), and dock at the orbital
laboratory June 15. The shuttle currently has a 90 percent chance of good
weather for launch, mission managers said. Astronauts plan to install the
porch, officially called the Japanese Exposed Facility, during two of the five
planned spacewalks set for their marathon 16-day mission.
"It's a large external porch to
the space station where high quality experiments can be conducted in high
vacuum of space," said STS-127 mission specialist Dave Wolf in a NASA
interview. "It's really an exceptionally valuable piece of
real estate being produced in outer space. It has its own robotic arms, the
ability to do observations of the Earth and of the sky, astrophysics
experiments, a very wide range of abilities."
The astronauts have nicknamed the porch "Jeff" (for Japanese Exposed
Facility) and call an accompanying pallet carrying science experiments
"Jelly" (for Japanese Logistics Element).
The exposed facility is just over 18
feet (5.6 meters) wide, 16 feet (5 meters) high and 13 feet (4 meters) long,
and can hold up to 10 experiments at a time. Astronauts can manipulate the
outdoor experiments from within the space station via a special robotic arm and
use a small airlock to move materials out to the porch.
Japan's space hopes
The porch is the last major element
of the $1
billion Kibo Laboratory, the main Japanese contribution to the space
station. The previous elements were delivered during two shuttle flights last
year. In English, Kibo's name means "Hope."
"For Japan it's a very
important mission to complete the assembly of the Kibo module on the ISS,"
said Japanese Aerospace Exploration Agency astronaut Koichi Wakata,
who is wrapping up a three month-stay aboard the space station. "It's over
20 years since Japan started to work on this project. I think taxpayers deserve
to see us get to the next level, which is the utilization of the International
Space Station."
Research inside the pressurized part
of Kibo has
already begun, and experiments are set to start on the porch soon after it
is installed. As Japan's first long-term resident aboard the station, Wakata has overseen the Kibo lab's systems during his stay.
In addition to the main exposed
platform, Endeavour will also deliver a pallet with three science experiments,
including an astronomical observatory that will monitor X-ray spectra from the
station, and an instrument to measure particles such as heavy ions, high-energy light particles, and cosmic dust in the space
environment.
"This is a milestone for us,
moving from assembly phase to operation phase," Tetsuro
Yokoyama, deputy project manager for the Kibo operations team, said in a
preflight briefing.
The Kibo complex will ultimately be
used for research in space medicine, biology, astronomy, Earth observations,
material production, biotechnology and communications research.
The experiments are overseen by
Japanese mission control at the Space Station Operations Facility at Tsukuba
Space Center in Ibaraki Prefecture, Japan.
SPACE.com will provide complete
coverage of Endeavour's STS-127 mission to the International Space Station with
Staff Writer Clara Moskowitz in Cape Canaveral, Fla., and Senior Editor Tariq
Malik in New York. Click here
for mission updates and a link to NASA TV.
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