expect the deepest picture of the universe ever

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[EN VIDÉO] Understand the mission of the James Webb Space Telescope in a minute
The James Webb Space Telescope, a new space observation flagship, will be launched on December 18 from Kourou, Guyana. After a journey of 29 days it will reach the Lagrange point L2, in the opposite direction to the Sun. With a larger mirror than that of Hubble, of which it is said to be the successor, the JWST will be able to observe galaxies, planets, nebulae and stars to learn more about the history of the universe.

12 more days to wait. On July 12th, the NASAthe ESA and theCSA (Canadian Space Agency) will release the first images from the James Webb Space Observatory and the first spectroscopic data.

NASA chief Bill Nelson stressed at a press conference yesterday that one of the images to be revealed is the deepest image of ours universe which was never acquired. ” It is further than mankind has ever seen before “He explained and qualified those telescope from ” no less than a genuine scientific achievement “. This image will therefore surpass that of ultra-deep fieldHubble, which has become an icon. At the moment it is not known whether James-Webb observed the same point as Hubble from the regionsouthern hemispherelies in the constellation of the oven.

Images to change the vision of astronomy

The photos that will be published were therefore selected. Nasa said they were chosen based on scientific considerations, their ability to demonstrate the scope of the telescope’s capabilities, as well as their artistic interest and anticipated colorful beauty. Each of the pictures shows ” different aspects of the universe Infrared in unprecedented detail and sensitivity said the James Webb scientists.

In addition to the deepest infrared view of the cosmos To date, the pictures should also show how it works galaxies interact and develop. You can also show yourself Stars dying plants seeding the galaxy with new elements and dust that could one day become part of new planetary systems. Will James-Webb revisit the famous Eagle Nebula (M 16) and its iconic Pillars of Creation? We suspect that NASA doesn’t ” bullied “ all pictures that will be published…

Regarding the spectroscopic data, among the acquired spectra there is that ofthe atmosphere of an exoplanet that could help us identify what molecules exist in its atmosphere and whether the observed exoplanet could potentially be habitable, not to be confused with “being inhabited”.

By the end of this press conference, everyone is convinced that James-Webb should indeed revolutionize astronomy and answer a variety of questions such as: where do we come from », « Who are we ? ” and ” what else is there? »

Another piece of good news: we knew that thanks to Ariane 5, James-Webb will work longer than expected, 10 years versus 5 years originally planned. Finer calculations finally showed that there was enough fuel to run it for at least 20 years.

Save the date! The first ‘real’ pictures of James-Webb will be revealed soon

Article by Remy Decourt published on 05/06/2022

Mankind is about to witness the next spectacle hosted by the James Webb Telescope, astronomy experts are unanimously predicting. The largest space observatory ever built will soon deliver its first images. Undoubtedly, they are accompanied emotionally by an intense “wow”.

NASA announces that the first images and spectroscopic data of the James Webb Space Telescope will be released on July 12th. Not surprisingly, the first images will be spectacular. But above all, on a technical, scientific and artistic level, they must surpass Hubble’s most beautiful images, which have amazed us for more than 30 years.

The largest, most complex, and most expensive space observatory ever launched, James-Webb underwent a six-month preparatory phase before it could begin scientific operations, calibrating and aligning its four instruments to its spatial environment mirror. This painstaking process resulted in the first images and data demonstrating the capabilities of the telescope and its properties 6.5 meter mirror revealed the infrared universe.

There ” Publication of the first pictures in colour von Webb will offer us all a once in a lifetime moment to stop and marvel at a sight that mankind has never seen before. said Eric Smith, Webb program scientist. And to add these pictures will be the culmination of decades of dedication, talent and dreams – but they will only be the beginning “. As far as teasing goes, we can’t do better!

An expected “wow”

More seriously, and as NASA points out, this is “ For five years, the JWST scientific team has been working and thinking about what will be the first goals of this observatory “, the astronomical cost of which is around 10 billion dollars. At this price, the American, Canadian and European citizens who funded it expect data that will “revolutionize” the observation of the sky in the infrared.

If we expect these first images to be of great artistic interest, we should be excited too astronomers professionals and underline the enormous technological performance of the instruments on board the satellite. They should also provide some insight into what users can expect from James Webb data. Once the observatory is operational and its instruments properly calibrated, the James Webb Telescope will sequentially observe a list of targets that have been preselected and prioritized by an international committee.

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