Iridium Will Make Skies Safer (Source:
Winnipeg Free Press)
Iridium is planning to replace its existing constellation with new
satellites. The plan is low-risk; it will use robust technologies and
mature launch services. Iridium now uses 66 satellites. They are in six
orbits, 766 kilometers above sea level. Each links to four others and
to ground stations. They offer voice and data services to remote
places. The new satellites will upgrade these services. They will also
automatically track planes that carry the appropriate equipment. Click here.
(9/26)
Vandenberg Launch Pad Has a History of
Canceled Programs (Source: SLO Tribune)
While their likely launch capabilities were being developed at
Vandenberg, President Nixon canceled the HEXAGON and MOL programs and
they replaced eventually with a satellite program more similar to
HEXAGON. The result of the termination in Lompoc was a nosedive in the
local economy as dozens of high-paying jobs supporting the program were
gone.
Nixon later endorsed the space shuttle concept for manned spaceflight.
The shuttle was a second chance for Lompoc, and an attempt was made to
recycle the launch facility (SLC-6) into the West Coast base for the
space shuttle. Reconstruction was well along when the shuttle
Challenger exploded over Florida. The California engineering was
re-examined, and it was found that SLC-6 had a hydrogen entrapment
issue, and the control center was too close to the launch pad. The
Vandenberg shuttle program was scrapped.
The ill-fated Athena rocket project occupied the facility in the 1990s.
Janene Scully wrote in the Lompoc Record in 2005 that the pad would be
used for Delta rockets, where that program continues today. (9/23)
SSPI and Korn Ferry Partner on
Satellite Industry Workforce Study (Source: SSPI)
The Society of Satellite Professionals International (SSPI) announced
today that Korn Ferry, the preeminent authority on leadership and
talent, will partner on development of the Society’s 2nd annual
Satellite Industry Workforce Study.
The study is the industry’s only multi-company, multinational
examination of workforce practices, employee compensation and
engagement, and the make-up of the industry's workforce. The
report compares compensation across job categories and regions, and
analyzes employee engagement at all levels. It aims to share best
practices in attracting and managing talented people, and to spark a
management dialogue on collective actions to improve the industry'
performance. (9/23)
PISCES, NASA Team Up for Landing Pad
Project in Hawaii (Source: Hawaii Tribune)
A Hilo-based aerospace agency plans to build a prototype for a
launching and landing pad this fall that could help bring the concept
of sustainability into space. The 100-square-foot pad will be made
entirely of basalt, the volcanic rock that makes up the Hawaiian
Islands and found commonly on the moon and Mars, according to the
Pacific International Space Center for Exploration Systems.
PISCES, which operates under the state Department of Business, Economic
Development and Tourism, is teaming up with NASA on the cutting-edge
project. The idea is to help future space explorers make their own
infrastructure from materials they find on celestial bodies, according
to PISCES. (9/25)
Fish Reveal Details of Bone Density
Loss During Space Missions (Source: JAXA)
Spending time in space in a reduced gravity environment can have
lasting effects on the body. For example, it is known that gravity
plays a key role in the correct formation and maintenance of bone
structure. Studies have shown that astronauts experience a significant
drop in bone mineral density when they have been on space missions, but
the exact molecular mechanisms responsible for this are unclear.
Now, Akira Kudo at Tokyo Institute of Technology, together with
scientists across Japan, have shown that medaka fish reared on the
International Space Station for 56 days experienced increased
osteoclast activity – bone cells involved in the re-absorption of bone
tissue - likely leading to a subsequent reduction of bone density. They
also found several genes that were upregulated in the fish during the
space mission.
The team generated fish with osteoclasts that emit a fluorescent
signal. They sent 24 fish into space as juveniles, and monitored their
development for 56 days under microgravity. The results were compared
with a fish control group kept on Earth. Kudo and his team found that
bone mineral density in the pharyngeal bone (the jaw bone at the back
of the throat) and the teeth of the fish reduced significantly, with
decreased calcification by day 56 compared with the control
group. (9/24)
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