New image from Webb, another milestone achieved
New image from Webb
NASA announced on March 16, 2022, that they’ve achieved, now, a critical milestone with the Webb telescope. Notably, they’ve completed the mirror alignment steps and are happy to report that:
… Webb’s optical performance will be able to meet or exceed the science goals the observatory was built to achieve.
With this in mind, NASA celebrated by releasing a photo today that shows a star with bright diffraction spikes and numerous background galaxies. Conversely, Webb still won’t be ready for science operations for some months. However, the scientists are thrilled with its performance so far and are excited for what they’ll soon discover, in due time.
Another milestone achieved
Currently, the Webb telescope has also completed the fine phasing stage of alignment. More specifically, this means the Webb’s primary imager, the Near-Infrared Camera (NIRCAM), is fully aligned to its mirrors.
Ritva Keski-Kuha of NASA Goddard said:
We have fully aligned and focused the telescope on a star, and the performance is beating specifications. We are excited about what this means for science.
Now, the team still needs to align other instruments on the telescope, and they expect to complete all optical alignments by early May. Next, they will work on science instrument preparations. Full-resolution imagery should, then, come this summer.
More about the new image
While the purpose of Webb’s latest image was to focus on a bright star and evaluate the alignment progress, Webb’s optics are so sensitive that galaxies and other stars can be seen in the background. Watch this video for an in-depth explanation of how the image was created! pic.twitter.com/tL2vJUeLKl
— NASA Webb Telescope (@NASAWebb) March 16, 2022
Colors in space telescope images sometimes recreate the way our eyes see; other times they’re selected to highlight interesting features of an object, such as different elements in a nebula. Here, the red color palette of Webb’s image was chosen to optimize visual contrast.
— NASA Webb Telescope (@NASAWebb) March 16, 2022
Bottom line: NASA released a new image from the James Webb Space Telescope, the most powerful infrared space telescope, on March 16, 2022. The image shows a star with bright diffraction spikes and galaxies in the background.
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