Top images captured by the James Webb Space Telescope in preparation

While it's almost time to enjoy the wonders of the James Webb Space Telescope, this powerful observatory is still in the process of being prepared by capturing spectacular images. It took the universe by surprise.

BingMag.com Top images captured by the James Webb Space Telescope in preparation

While it's almost time to enjoy the wonders of the James Webb Space Telescope, this powerful observatory is still in the process of being prepared by capturing spectacular images. It took the universe by surprise.

More than 25 years have passed, with $ 10 billion spent since the first James Webb Space Telescope project was launched, and this Finally, on December 25, 2021 (December 4, 1400), a powerful scientific instrument was launched by the European Arian 5 rocket.

Beyond the Moon, it has almost completed its preparation to embark on scientific missions that will transform the world of astronomy, astrophysics, and many other fields.

But even in the past few weeks We have seen a small example of this future with test images posted by the web. Although these images are just experiments with scientific tools, they all point to the unprecedented power of the next generation of space telescopes, and of course the real James Webb display is still on the way!

James Webb Space Telescope Alignment Image of 2MASS J17554042 + 6551277

At the end of a process called "Fine Phasing", the primary mirror of the James Webb Space Telescope (JWST) consists of 18 hexagonal sections. On March 11, 2022 (March 10, 1400), a single star named 2MASS J17554042 + 6551277 was targeted and then a small number of others in its vicinity. This was called a level image, but with a combination of 18 distinct images, the resolution of the image reached 50 nanometers, and this is only a fraction of the wavelengths that the web will record when it actually starts.

BingMag.com Top images captured by the James Webb Space Telescope in preparation

James Webb's first alignment image of a single star
Credit: NASA/STScI

"Klaus Pontoppidan," the project scientist at the Space Telescope Scientific Institute (STScI), said: "While we've only seen a few experimental images from the web so far, this is probably my favorite alignment image. Is. "This single star shows that the telescope is almost completely in focus, and this is a pioneering engineering achievement."

Most people only see the central star, which is certainly beautiful. But the real beauty is the immense abundance of ancient galaxies in the background of this image. "We also see a stunning field from distant galaxies;" Pontopidan added. In this snapshot, the web is now in the middle of the world, providing a glimpse of the science of the future. It happens. "Literally, when the Web spends more than 20 minutes taking pictures, it shows a background of galaxies competing or even overtaking the image of Hubble's deep field," Pontopidan noted.

BingMag.com Top images captured by the James Webb Space Telescope in preparation

James Webb Telescope selfie recorded by the NIRCam tool Credit: NASA/STScI

2. Image of 18 Web Mosaics of a Star

In February 2022, James Webb published a spectacular collection of 18 stars spread out on a black background. But the image is a trick, and all its bright stars are actually the same. This star, called HD 84406, is located in the constellation of Ursa Major. The image of this star is seen multiple times because the alignment of the various parts of the mirror was not yet complete.

BingMag.com Top images captured by the James Webb Space Telescope in preparation

Mosaic image captured by James Webb of a star
Credit: NASA

Thus the telescope's uneven mirror sections each reflect light separately to the telescope instrument. . "We have aligned and focused the telescope on a star, and its performance goes beyond its technical features," said Ritva Keski-Kuha, deputy director of the Web-based optical telescope.

"Thomas "More than 20 years ago, the James Webb team began building the most powerful telescope it has ever had in space, and they came up with an optical design to achieve scientific goals," said NASA science director Thomas Zurbuchen. .

3. Alignment of the Deep Universe

Alignment of web scientific instruments was the next process after the alignment of mirrors, and to lower it the observatory had to show that it could receive "clear, well-focused images" with all four of its scientific instruments. .

BingMag.com Top images captured by the James Webb Space Telescope in preparation

James Webb Telescope /> Credit: NASA/STScI

This alignment can be clearly seen in a set of images that show the observatory's full field of view. Thus, after several months of adjusting the mirror and scientific tools, the telescope entered the final phase of preparation. This stage It will take about two months, and if all goes according to plan, the process will be completed in June to begin the main operation of the James Web Web.

Large Magellanic Cloud Image

A newer image from the web released on May 9 shows an incredible view of the Large Magellanic Cloud, a lunar galaxy near the Milky Way. This image was taken by the coldest instrument on the telescope, the Mid-Infrared Instrument or MIRI. Zoomed in on a star field in the satellite galaxy and tested the imaging capabilities of the James Webb Space Telescope.

BingMag.com Top images captured by the James Webb Space Telescope in preparation

Comparison of images of the James Webb Space Telescope (right) and Spitzer (left) of the Large Magellanic Cloud
Credit: NASA/JPL-Caltech (left), NASA/ESA/CSA/STScI (right)

This image sits next to an older image of the now-retired Spitzer Space Telescope, emphasizing the telescope's high near-infrared resolution. . NASA wrote: "The Web, with its larger primary mirror and improved detectors, allows us to see the infrared sky with better resolution and allows for more exploration."

And all this is just the beginning. Is. This summer, the James Webb Telescope will finally begin its real-world scientific mission, and is expected to capture the first "real" image of the atmosphere on extrasolar planets beyond our solar system.

The Web also captures moving objects. It will explore our own solar system and provide a highly advanced tracking and imaging system for scientists specializing in near-Earth objects. In-depth web studies also help uncover the evolution of ancient and macro-mass black holes, and many more are considered in the Web's first scientific cycle. As it begins, we will see more updates and new images of it, and with the release of any image that catches the attention of the media and enthusiasts, the world will enjoy a new kind of astronomy. A science whose discoveries will accelerate, and this great scientific event will take place in our time. p>

source: Interesting Engineering

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