Astronomers with an international partnership of observatories are
leveraging Internet connectivity to join telescopes on different continents,
creating the world's first global cyber observatory.
The work being done by the Gemini Observatory –-
a National Science Foundation-supported effort that includes two 8-meter telescopes
in Hawaii and Chile -– will link astronomical resources for increased cooperation
and more efficient and powerful probes of space.
"Gemini has laid the foundation for a new way of doing astronomy that will allow
us to see farther, fainter and sharper than ever before," said NSF astronomy
director Wayne Van Citters.
Celestial Link
Researchers at Gemini, a cooperative astronomy effort of the U.S., Canada, UK, Australia,
Argentina, Brazil and Chile, are linking the telescopes on Mauna Kea, Hawaii, and
Cerro Pachon in the Chilean Andes through a high-speed network, known as
Internet2, and AMPATH, a Florida
International University Internet portal.
"Because Gemini is a single observatory with two telescopes, it is especially useful
to us," Gemini spokesperson Peter Michaud told NewsFactor. "We anticipate that
this trend will become important to all observatories, but the global separation
of Gemini makes it uniquely significant to us."
Computing in the Skies
Michaud said the biggest impact of the Internet-linked telescopes will be the
ability for astronomers to participate in observations from their home offices.
"We can now match the observation with the conditions, since we don't have to wait
for an astronomer to get here to make an observation," Michaud explained.
"This matching of observations with conditions is significant in assuring that
when we need sharper images for a particular observation, we will be able
to obtain images that have fainter, and therefore deeper, imaging capabilities."
The Gemini linkage, under development for five years, is just one example
of how computing and adaptive optics processing are advancing the field of astronomy.
"Because of computer processing power , we can now produce images from the ground
that are several times sharper than what is possible with the Hubble Space Telescope,"
Michaud said. "This has really given ground-based astronomy a turbocharged boost."
Deep Space Data
In April, researchers at
Johns Hopkins University announced they had
designed a virtual
observatory that joined three different astronomy databases using the Internet and
Microsoft 's .NET Web-services platform.
That project, known as SkyQuery, was
considered an important step for the National Virtual
Observatory and will allow astronomers to keep up with the deluge of data they are
collecting, Johns Hopkins professor Alex Szalay told NewsFactor.
"The [amount of] data is doubling every year," Szalay said. "We are taking data as
fast as we can collect it, and we are choking on it. In three years, we'll have
more than a petabyte (1,024 terabytes)."
Researchers said by linking telescopes, they will be able to synthesize data
and learn more about the celestial subjects they study.
"The ability to immediately network with scientists and engineers around the
world will allow us to use our instruments more effectively and efficiently.
So, in a real sense, we will be able to get more out of our instruments and
maximize their effectiveness," Gemini's Michaud said.
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