In with a bang: The James Webb Space Telescope after one year – cnn hollywood

admin

The pictures have amazed the world. They are also expanding the horizons of science. NASA’s James Webb Space Telescope (JWST) is special because it is larger and more powerful than its predecessors. It can excel at spectroscopy, the measurement of light wavelengths, which helps reveal physical details like a celestial object’s temperature, age, and speed – and even what the object is made of.

“The joke in the community … is that a picture says a thousand words, but a spectrum is worth a thousand pictures,” says Massimo Stiavelli, mission leader for the telescope.

HTML tutorial

Why We Wrote This

A story focused on

From its first images, the James Webb Space Telescope has delivered breathtaking views of our universe. The range and precision of its observations are also transforming science.

Perhaps the greatest surprise so far is that the earliest galaxies were bigger, brighter, and hotter than scientists had predicted. 

HTML tutorial

In addition to viewing distant galaxies, the JWST is also adept at observing planets outside of our solar system, called exoplanets, seen as key to the search for other life in the universe. The telescope’s capacity to observe infrared light can unveil properties of exoplanet atmospheres.

“Is JWST going to give us a definitive ‘No, we’re not alone’? I don’t know,” says Cornell University astronomer Nikole Lewis. “But it’s certainly going to teach us a lot about how to look for life beyond our solar system.”

HTML tutorial

On the evening of July 11, 2022, U.S. President Joe Biden tweeted a photo. Points of orange, blue, and gold light sparkled and swirled against the black vacuum of space. It was our universe viewed through a new lens.

The image was the first from NASA’s James Webb Space Telescope (JWST), which has been heralded as a major step in the study of the cosmos.

“The first image from the Webb Space Telescope represents a historic moment for science and technology. For astronomy and space exploration,” Mr. Biden’s tweet read. “And for America and all humanity.”

HTML tutorial

Why We Wrote This

A story focused on

From its first images, the James Webb Space Telescope has delivered breathtaking views of our universe. The range and precision of its observations are also transforming science.

That photo was soon followed by countless more, each as enthralling as the last. But the photos alone, though dazzling, don’t capture the scientific advances that this successor to the Hubble Space Telescope has already enabled in its first year – or those on the horizon.

HTML tutorial

“It’s transformational,” John Mather, a senior astrophysicist at NASA, says. “We expect that every page of the new astronomy textbooks will be different because of what we’ve found.”

NASA/ESA/CSA/STScI/AP

This initial public image from the James Webb Telescope, released in July 2022, shows galaxy cluster SMACS 0723. Some of the distant light in the image could be more than 13 billion years old.

How does the JWST enable new views of space?

This is a larger, more powerful telescope than its predecessors.  

While the Hubble was primarily an imaging telescope, the JWST has a size that allows it to specialize in spectroscopy – the measurement of light in terms of its wavelength. When it comes to astronomy, spectroscopy can reveal many physical details about a celestial object: its temperature, its age, what it’s made of, and how fast it’s moving, for instance.

Leave a comment