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A Window on the Universe: The James Webb Space Telescope
Nicknamed the “Cosmic Cliffs,” this spectacular image of a stellar nursery named NGC 3324 showcases Webb’s ability to see through obscuring cosmic dust—in this case the edge of the Carina Nebula—to see how stars form. “Webb reveals emerging stellar nurseries and individual stars that are completely hidden in visible-light pictures,” The NASA description states. Image: NASA, ESA, CSA, and STScI

A Window on the Universe: The James Webb Space Telescope 

Our theme for 2022 at Topanga New Times was “Changemakers,” and there was no greater changemaker than the Webb Space Telescope. In just a few months the Webb has already delivered everything promised and more. It is illuminating and expanding our understanding of the Universe in ways that were unimaginable just a generation ago. This feature ran in our July 29 issue. We’ve updated it to include more of the astonishing discoveries and electrifying imagery this amazing instrument has delivered to the people of Earth. 

We set sail on this new sea because there is new knowledge to be gained, and new rights to be won, and they must be won and used for the progress of all people.

—John F. Kennedy, September 12, 1962 

Nicknamed the “Cosmic Cliffs,” this spectacular image of a stellar nursery named NGC 3324 showcases Webb’s ability to see through obscuring cosmic dust—in this case the edge of the Carina Nebula—to see how stars form. “Webb reveals emerging stellar nurseries and individual stars that are completely hidden in visible-light pictures,” The NASA description states. Image: NASA, ESA, CSA, and STScI

The photos were everywhere the week the Webb Space Telescope went live: a vast panorama of galaxies in deep space, warped by gravity; a dying star exploding in a web of rainbow gas and dust; a towering cliff of stars and starstuff seven light-years high. The beauty of the first images from NASA’s new James Webb Space Telescope is breathtaking, but the scientific significance of what these images reveal is almost unimaginably astounding. This is much more than just a telescope: it’s a time machine, a window into the beginning of the universe. It is not an exaggeration to call this fragile instrument, orbiting the sun a million miles from its home world, one of the greatest scientific achievements in human history.

Webb is an international program led by NASA with its partners ESA (European Space Agency) and CSA (Canadian Space Agency). Getting the Webb into space has been an agonizingly slow process, one with many delays, and obstacles to overcome. The project has some formidable goals: solving mysteries in our own solar system; looking beyond it to distant worlds around other stars; and penetrating the mysteries of deep space, looking back in time and across space more than 13 billion years, almost as far back as the beginning of the universe.

When the first set of full-color, high resolution images and spectroscopic data from the telescope was released, it was clear that Webb had the potential to deliver everything promised and potentially much more, and it has already exceeded expectations. 

NASA Administrator Bill Nelson described the images as “groundbreaking.”

“These images, including the deepest infrared view of our universe that has ever been taken, show us how Webb will help to uncover the answers to questions we don’t even yet know to ask,” Nelson said. “Questions that will help us better understand our universe and humanity’s place within it.”

The image titled “Cosmic Cliffs” was released to showcase Webb’s ability to see through dense clouds of cosmic dust. Revealing, in this case, new insights into how stars form. Those “cliffs” are the edge of the giant, gaseous “cavity” within NGC 3324, a star nursery located at the edge of the Carina Nebula, 7,600 light-years away. This is a place we could previously only dream of seeing. 

The deep space image with all of the galaxies in it was released as an example of gravitational lensing—a phenomenon that occurs when the gravity of something massive warps space, creating a fisheye lens effect that appears to distort and magnify anything behind it—in this case, the lens effect is created by galaxy cluster SMACS J0723, with around 100 trillion times the mass of our sun. This image has already rocked the scientific community, revealing that the early universe had 10 times the number of spiral galaxies (like our own Milky Way) than previously known.  

Webb also has the ability to collect detailed spectrographic data. The instruments are so sensitive that they can detect the presence of specific gas molecules based on the colors present in the light emitted from distant worlds and the suns they orbit. 

This is a transmission spectrum for the gas giant exoplanet in the WASP-96 system. The Webb’s Near-Infrared Imager and Slitless Spectrograph (NIRISS) measured light from the system for 6.4 hours as the exoplanet moved across its star. From that data,  researchers were able to not only verify the existence, size, and orbit of this planet—first discovered in in 2013. Webb’s NIRISS is so sensitive it was also able to identify the presence of water, and evidence for water vapor in the form of haze, and clouds that were thought not to exist based on prior observations. Image: NASA, ESA, CSA, and STScI

Data from the spectrum of light obtained from Webb’s initial exoplanet target—WASP-96 b, a gas giant 1,150 light-years away in the southern-sky constellation Phoenix—reveals the distinct signature of H2O, water. This planet, with what we now know is a hazy, humid atmosphere, is one of 5,000 confirmed exoplanets in the Milky Way. Webb will help researchers determine whether any of these alien worlds so far from our own solar system have the potential to sustain life. It may even enable researchers to determine the ratio of seas to land, assuming some of those planets have rocky cores and liquid oceans like our own. The instruments are so sensitive that there may be the potential to determine differences between winter and summer, identify weather patterns, and perhaps even detect the presence of vegetation.

Webb will also capture spectrographic data on some of the planets in our own solar system. Analyzing organics in the atmosphere of Mars could finally answer the question of whether there was ever life on our sister planet, and provide insight into how life evolved on our own planet. 

When John F. Kennedy declared that the U.S. would venture into space for the first time, he stated there was knowledge to gain. Just sixty years later, the James Webb Space Telescope has the capacity not only to show us other worlds, but to open a window into the beginning of the universe. Knowledge beyond imagination.

“We take dreams and turn them into reality for the benefit of humanity,” Nelson said. “I can’t wait to see the discoveries that we uncover—the team is just getting started!”

This astonishing image of the “the Pillars of Creation” may be the most iconic of the first images captured by the Webb Space Telescope and for good reason. This tiny section of the vast Eagle Nebula is 6,500 light years away, but it shows in incredible detail a star nursery, with young stars that are estimated to be only a few hundred thousand years old—mere infants that will continue to form for millions of years. Image: NASA, ESA, CSA, and STScI

 Webb Facts

  • The Webb can downlink at least 57.2 gigabytes of recorded science data each day, with a maximum data rate of 28 megabits per second.
  • The Webb telescope is powered by an on-board solar array. It also has a propulsion system to maintain the observatory’s orbit and attitude. The solar array provides 2,000 watts of electrical power for the life of the mission, and there is enough propellant onboard for at least 10 years of science operations.
  • Over the course of six months, as Webb orbits the Sun with Earth, it has the ability to observe almost any point in the sky—about 39 percent of the sky is potentially visible to Webb at any given time. However, the infrared cameras must face away from objects that are warm and close enough to interfere with the telescope’s ability to observe faint infrared light, so it cannot observe the Sun, Mercury, Venus, Earth, or the Moon.
  • All data from Webb will be publicly available online—this is a space and time travel adventure that everyone can participate in, and it promises to be wilder than anything ever dreamed of in any fictional multiverse!
Eerily beautiful and luminous, the mysterious ice giant Neptune reveals its rings and seven of the planet’s 14 known moons in this recent Webb portrait: Triton Galatea, Naiad, Thalassa, Despina, Proteus, and Larissa. Triton dominates this Webb portrait of the planetary system—it’s the bright “star”  with the diffraction spikes seen in many of Webb’s images. In addition to providing a wealth of incredible data on our distant and still almost entirely unexplored neighbor, and its moons, this image is spectacularly beautiful. It’s a mind-boggling achievement on many levels, and this is just the beginning: unimaginable wonders and discoveries will continue to be revealed. Image: NASA, ESA, CSA, and STScI

Follow the James Webb Space Telescope online at

This article was originally published in Topanga New Times, Vol. 3, Issue #15, July 29, 2022. It has been updated with new information.

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