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NASA’s James Webb Space Telescope, a
partnership with ESA (European Space Agency) and the Canadian Space Agency
(CSA), will release its first full-color images and spectroscopic data on July
12, 2022. As the largest and most complex observatory ever launched into space,
Webb has been going through a six-month period of preparation before it can
begin science work, calibrating its instruments to its space environment and aligning its mirrors. This careful process, not to mention
years of new technology development and mission planning, has built up to the first images and
data: a demonstration of Webb at its full power, ready to begin its science mission and unfold the infrared universe.
“As we near the end of preparing the
observatory for science, we are on the precipice of an incredibly exciting
period of discovery about our universe. The release of Webb’s first full-color
images will offer a unique moment for us all to stop and marvel at a view
humanity has never seen before,” said Eric Smith, Webb program scientist at
NASA Headquarters in Washington. “These images will be the culmination of
decades of dedication, talent, and dreams – but they will also be just the
beginning.”
Behind
the Scenes: Creating Webb’s First Images
Deciding what Webb should look at first
has been a project more than five years in the making, undertaken by an
international partnership between NASA, ESA, CSA, and the Space Telescope
Science Institute (STScI) in Baltimore, home to Webb’s science and mission
operations.
“Our goals for Webb’s first images and
data are both to showcase the telescope’s powerful instruments and to preview
the science mission to come,” said astronomer Klaus Pontoppidan, Webb project
scientist at STScI. “They are sure to deliver a long-awaited ‘wow’ for
astronomers and the public.”
Once each of Webb’s instruments has been calibrated, tested, and given the green
light by its science and engineering teams, the first images and spectroscopic
observations will be made. The team will proceed through a list of targets that
have been preselected and prioritized by an international committee to exercise
Webb’s powerful capabilities. Then the production team will receive the data
from Webb’s instrument scientists and process it into images for astronomers
and the public.
“I feel very privileged to be a part of
it,” said Alyssa Pagan, a science visuals developer at STScI. “Typically, the
process from raw telescope data to final, clean image that communicates
scientific information about the universe can take anywhere from weeks to a
month,” Pagan said.
What Will We See?
While careful planning for Webb’s first
full-color images has been underway for a long time, the new telescope is so
powerful that it is difficult to predict exactly how the first images will
look. “Of course, there are things we are expecting and hoping to see, but with
a new telescope and this new high-resolution infrared data, we just won’t know
until we see it,” said STScI’s lead science visuals developer Joseph
DePasquale.
Early alignment imagery has already demonstrated the
unprecedented sharpness of Webb’s infrared view. However, these new images will
be the first in full color and the first to showcase Webb’s full science
capabilities. In addition to imagery, Webb will be capturing spectroscopic data
– detailed information astronomers can read in light. The first images package of materials will highlight
the science themes that inspired the mission and will be the focus
of its work: the early universe, the evolution of galaxies through time, the
lifecycle of stars, and other worlds. All of Webb’s commissioning data – the
data taken while aligning the telescope and preparing the instruments – will
also be made publicly available.
What’s
Next?
Science! After capturing its first images,
Webb’s scientific observations will begin, continuing to explore the mission’s
key science themes. Teams have already applied through a competitive process for time to use the telescope, in what
astronomers call its first “cycle,” or first year of observations. Observations
are carefully scheduled to make the most efficient use of the telescope’s time.
These observations mark the official
beginning of Webb’s general science operations – the work it was designed to
do. Astronomers will use Webb to observe the infrared universe, analyze the
data collected, and publish scientific papers on their discoveries.
Beyond what is already planned for Webb,
there are the unexpected discoveries astronomers can’t anticipate. One example:
In 1990 when the Hubble Space Telescope launched, dark energy was completely unknown. Now it is one of the
most exciting areas of astrophysics. What will Webb discover?
The
James Webb Space Telescope is the world's premier space science observatory.
Webb will solve mysteries in our solar system, look beyond to distant worlds
around other stars, and probe the mysterious structures and origins of our
universe and our place in it. Webb is an international program led by NASA with
its partners, ESA (European Space Agency) and the Canadian Space Agency.
Source: First
Images From NASA’s Webb Space Telescope Coming Soon | NASA
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