|
NASA's
Ready to Study Cool Ice, Hot Plasma and Ocean Winds - Continued
The interstellar
medium literally contains the seeds of future stars, and all the
stars we see were once formed out of the same kind of diffuse gas
and dust. When the gas in the interstellar medium cools and collapses,
the gas forms clumps that scientists believe evolve into stars and
planets. One of the biggest puzzles in astrophysics is the process
that turns this very diffuse, hot and cold gas and dust into stars.
Our solar system
is located in a region of space scientists call the Local Bubble,
which is about 300 light-years in diameter and is filled with gas
much less dense than the average interstellar medium. This gas also
is extremely hot - - about 1.8 million degrees Fahrenheit, or about
180 times as hot as the surface of our Sun. It is this extremely
diffuse gas inside the Local Bubble that the CHIPS mission is studying.
The CHIPS satellite
weighs 60 kilograms (132 pounds) and is the size of a large suitcase.
It will orbit about 590 kilometers (367 miles) above the Earth and
is expected to operate for one year.
The CHIPS satellite
is sponsored by the Office of Space Science at NASA Headquarters
in Washington. The CHIPS instrument was built at the Space Science
Laboratory of the University of California, Berkeley, and the spacecraft
bus was built by SpaceDev, Inc. of Poway, Calif. The project is
managed at Wallops Flight Facility, through the NASA Explorers
Program.
A third NASA
mission, SeaWinds, is NASA's latest Earth- monitoring instrument
for measuring the speed and direction of winds over Earth's oceans.
Set to launch aboard Japan's Advanced Earth Observing Satellite
II (Adeos II) at 8:31 p.m. EST on Dec.13 from the Tanegashima Space
Center, the mission is expected to yield improved global weather
forecasts and new insights into various Earth research investigations.
The mission
will help scientists determine the location, structure and strength
of severe marine storms -- hurricanes in the Atlantic, typhoons
near Asia and mid-latitude cyclones worldwide -- which are among
the most destructive of all natural phenomena. The National Oceanic
and Atmospheric Administration (NOAA), a chief mission partner,
will use the data to improve weather forecasting and storm warnings,
helping forecasters more accurately determine the paths and intensities
of tropical storms and hurricanes.
More information
about the ICESat program is available at: http://icesat.gsfc.nasa.gov/intro.html
More information on the CHIPS is available at: http://chips.ssl.berkeley.edu
More information on the SeaWinds on Adeos II is available at:
http://winds.jpl.nasa.gov/missions/SeaWinds/seaindex.html
|