James Webb telescope: NASA to reveal more photos of exoplanet, stars, galaxies

Source: globalnews.ca : 2022-07-12 13:36:53 : Michelle Butterfield

For the first time, humanity will be able to feast its eyes on the far reaches of space — in the clearest, sharpest photos ever taken of the universe around us.

After U.S. President Joe Biden had the honour of unveiling the first full-coloured photograph captured by the $10-billion James Webb Space Telescope (JWST) on Monday, NASA is getting set to release the full slate of beauty shots Tuesday morning.

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The images to be released Tuesday include a view of a giant gaseous planet outside our solar system, two images of a nebula where stars are born and die in spectacular beauty, and an update of a classic image of five tightly clustered galaxies that dance around each other.

NASA plans to release the images during a livestream beginning at 9:45 a.m. ET.

Later in the day, at 12:30 p.m. ET, NASA will host a live Q&A with members of the media and a selection of the experts from the agency, as well as representatives of the Canadian Space Agency and European Space Agency, which have made contributions to the telescope and its mission.

The photo Biden revealed Monday was a “deep field” image, filled with stars and massive galaxies in the foreground distorting the light of the objects behind, telescoping them and making faint and extremely distant galaxies visible. Part of the image will consist of light from not too long after the Big Bang.

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The first in-colour photo taken by the James Webb Space Telescope has been revealed.

The first in-colour photo taken by the James Webb Space Telescope has been revealed.

Courtesy / NASA

“If you held a grain of sand on the tip of your finger at arm’s length, that is the part of the universe that you’re seeing,” NASA administrator Bill Nelson told viewers as he explained the image.

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“What you’re seeing are galaxies, galaxies shining around other galaxies, and just a small little portion of the universe.”

The JWST is the successor to the Hubble Space Telescope, which has not only provided stunning images, but has also been vital in providing scientific knowledge about our universe and its origins.

A high-definition photo of the “Pillars of Creation,” as taken by the Hubble Space Telescope.

NASA, ESA, STScI, and J. Hester and P. Scowen (Arizona State University)/Hubble Heritage Team (STScI/AURA)

The JWST has a much larger primary mirror than Hubble (2.7 times larger in diameter, or about six times larger in area), giving it more light-gathering power and greatly improved sensitivity over the Hubble.

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The JWST launched, and there were no second chances — its extremely distant location in the solar system makes it impossible for human crews to visit for replairs.

Engineering teams celebrate at the Space Telescope Science Institute in Baltimore as the second primary mirror wing of NASA’s James Webb Space Telescope unfolds, before beginning the process of latching the mirror wing into place, Jan. 8, 2022.

Bill Ingalls / NASA via The Associated Press

But the telescope’s massive sunshield, with its 107 restraints holding it in place, was released correctly and everything has gone according to plan.

So far, we’ve been treated to small glimpses of the JWST’s optical brilliance.

In May, the telescope beamed back a round of test pictures showing off stunning images of a neighbouring satellite galaxy called the Large Magellanic Cloud. When compared with previous images captured by the Spitzer Space Telescope, the results are astonishing.

The sharpness and level of detail captured by the Spitzer Space Telescope (left) and the James Webb Space Telescope (right).


“It’s not until you actually see the kind of image that it delivers that you really internalize and go ‘wow!’” said the University of Arizona’s Marcia Rieke, chief scientist for Webb’s near-infrared camera, at the time. “Just think of what we’re going to learn.”

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And in March, the telescope handed in a spectacular star photo to NASA, passing its first assignment with flying colours.

The telescope alignment evaluation image, focusing in on a star called 2MASS J17554042+6551277, blew researchers’ hair back.

Galaxies and stars can be seen behind the star 2MASS J17554042+6551277 in this image captured by the James Webb Space Telescope.

Courtesy / NASA

“We said last fall that we would know that the telescope is working properly when we have an image of a star that looks like a star,” Lee Feinberg, Webb optical telescope element manager at NASA’s Goddard Space Flight Center, told Cosmos magazine at the time.

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“The performance is as good if not better than our most optimistic prediction.”

Read more:

‘Absolutely phenomenal’ — Webb Telescope’s first images have scientists giddy

Scientists believe the telescope will be able to peer back in time, possibly to 100 million years after the Big Bang. And not only do scientists think they can look back into galaxies from that time, but they also think they might be able to determine the composition of those galaxies.

In this 2017 photo made available by NASA, technicians lift the mirror assembly of the James Webb Space Telescope using a crane.

Desiree Stover/NASA

Thomas Zurbuchen, NASA’s science mission chief, said that with the new telescope, the cosmos is “giving up secrets that had been there for many, many decades, centuries, millennia.”

“It’s not an image. It’s a new worldview that you’re going to see,” he said during a recent media briefing.

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Zurbuchen said when he saw the images he got emotional and so did his colleagues.

“It’s really hard to not look at the universe in new light and not just have a moment that is deeply personal.”

NASA is collaborating on Webb with the European and Canadian space agencies.

with files from The Associated Press

© 2022 Global News, a division of Corus Entertainment Inc.

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