James Webb Space Telescope Will Hunt for Signs of Life on Exoplanets; First good pics 12th July 2022

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Message 2095943 - Posted: 17 Mar 2022, 0:44:31 UTC - in response to Message 2095926.  

Dr Becky got very excited about that just now this evening (Wednesday):


YouTube brief livestream: The James Webb Space Telescope mirrors are aligned!


Just got to be watched!

Enjoy!!
Martin
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Message 2095984 - Posted: 17 Mar 2022, 17:44:26 UTC

The JWST has a working resolution of 17 milliarcseconds? Remarkable! I've read predicted figures of 68 and 100 milliarcseconds. This presumably varies somewhat by wavelength. That appears to be 3 to 5 times better resolution than expected. I guess they were being conservative in their expectations.
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Message 2095991 - Posted: 17 Mar 2022, 18:40:20 UTC - in response to Message 2095984.  
Last modified: 17 Mar 2022, 18:42:04 UTC

Another great triumph for the JWST was the launch, the launch was so precise that only 1/2 of the fuel planned for was used which now will extend the useful life from 10 yrs to 20 yrs. A way I am looking at this is twice the life and 3 times the resolution means 6 time the science that was budgeted for. Fantastic.
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Message 2097348 - Posted: 7 Apr 2022, 21:39:36 UTC

The James Webb Space Telescope has now produced 14 excellent images of deep space objects, mostly distant galaxies. The video, linked below, shows each image, and includes some information about the objects themselves, and the imaging process.

https://www.youtube.com/watch?v=X96xAFjUWco
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Message 2101082 - Posted: 10 Jun 2022, 3:43:10 UTC

Uh oh..... MicroMeteoroid hits main mirror on James Webb Space Telescope
In a statement, NASA said the impact happened some time at the end of May. Despite the impact being larger than any that NASA modeled and "beyond what the team could have tested on the ground," the space agency said the telescope continues to perform at higher-than-expected levels. The telescope has been hit on four previous occasions since launch.
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Message 2101431 - Posted: 16 Jun 2022, 15:23:12 UTC

It's getting closer!
https://www.jwst.nasa.gov/content/webbLaunch/whereIsWebb.html
Warning, addicted to SETI crunching!
Crunching as a member of GPU Users Group.
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Message 2102872 - Posted: 9 Jul 2022, 21:20:23 UTC

NASA Shares List of Cosmic Targets for Webb Telescope’s First Images:
* Carina Nebula
* WASP-96 b (spectrum)
* Southern Ring Nebula
* Stephan’s Quinte
* SMACS 0723
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Message 2103004 - Posted: 12 Jul 2022, 3:35:14 UTC

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Message 2103040 - Posted: 12 Jul 2022, 17:12:05 UTC - in response to Message 2103004.  

Indeed. Spectacular!


See:

First images from Nasa’s James Webb space telescope reveal ancient galaxies
wrote:
... first glimpse from the most powerful telescope ever launched into space...


Webb's First Deep Field Unveiled (NIRCam Image)
wrote:
NASA’s James Webb Space Telescope has produced the deepest and sharpest infrared image of the distant universe to date. Known as Webb’s First Deep Field, this image of galaxy cluster SMACS 0723 is overflowing with detail.

Thousands of galaxies – including the faintest objects ever observed in the infrared – have appeared in Webb’s view for the first time...


Deployment Explorer - Image #1 - Deep Field: SMACS 0723
wrote:
NASA’s Webb Delivers Deepest Infrared Image of Universe Yet

Status: 1st Image Full Released 7/12/22 ~10:39am EDT

NASA's James Webb Space Telescope has produced the deepest and sharpest infrared image of the distant universe to date. Known as Webb’s First Deep Field, this image of galaxy cluster SMACS 0723...




Wow!

Keep searchin',
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Message 2103051 - Posted: 12 Jul 2022, 22:23:35 UTC

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Message 2103054 - Posted: 12 Jul 2022, 23:25:38 UTC

An enthusiastic and excellent summary is given on:


Brian Cox: New NASA pictures {James Webb Space Telescope}


Total brilliance for another big leap deeper into space and history!

Keep searchin'!
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Message 2103245 - Posted: 15 Jul 2022, 21:36:24 UTC

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Message 2103273 - Posted: 16 Jul 2022, 12:35:23 UTC
Last modified: 16 Jul 2022, 12:35:52 UTC

And for some detailed details of the big "Wow!" in those first images:


An astrophysicist explains the first JWST science images
wrote:
The first science images from JWST are absolutely spectacular, but what are we seeing in them and what can learn from them? I've been at the National Astronomy Meeting at the University of Warwick all week with 500 of my fellow astronomers, and we've been geeking out over the images together...



There are a multitude of big "Wow!"s in there... Including for finding the conditions for life elsewhere...

Keep searchin'!
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Message 2103402 - Posted: 18 Jul 2022, 21:03:16 UTC

Space Pebble That Hit Webb Telescope Caused Significant Damage, Scientists Say.

A micrometeoroid that hit the Webb Space Telescope in late May caused permanent damage to the spacecraft, according to a Space Telescope Science Institute report.

The report was published last week by NASA and the European and Canadian space agencies. It described the telescope’s science performance up to July 12, 2022, the day the telescope’s first images were publicly released, and included an exciting first look of the planet Jupiter as seen by Webb.

According to the analysis, the impact “exceeded prelaunch expectations of damage for a single micrometeoroid.” The Webb team is now studying how to predict and mitigate future impacts....
Cheers.
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Message 2104332 - Posted: 2 Aug 2022, 21:54:43 UTC

The latest image to pour over.

Webb Space Telescope Turns Its Eye on the Chaotic Cartwheel Galaxy.

The Webb Space Telescope team has unveiled the latest image from the observatory, and it’s a gorgeous portrait of the Cartwheel Galaxy, a dazzling object 500 million light-years away that formed from the high-speed collision of two galaxies....
Cheers.
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Message 2104374 - Posted: 3 Aug 2022, 11:45:14 UTC

And the pics just keep coming.

James Webb captures most distant star ever seen in incredible detail.

An image of the most distant known star in the universe has been captured by NASA's James Webb Space Telescope.

Named Earendel, after a character in J.R.R. Tolkien's 'Lord of the Rings' prequel 'The Silmarillion', it is almost 28 billion light-years away from Earth.

That is over 10 billion light-years more distant than the next-furthest star astronomers have seen.

At such enormous distances, experts can usually only make out entire galaxies, but a lucky coincidence allowed them to spot Earendel with the Hubble Space Telescope and then observe it again with Webb on July 30.

By comparing the Hubble image with that captured by NASA's new $10 billion (£7.4 billion) super space telescope, experts were able to find the elusive Earendel as a faint red dot below a cluster of distant galaxies.

The star, whose light took 12.9 billion light-years to reach Earth, is so faint that it would be challenging to find without the help of Hubble — which images in visible, ultraviolet light compared to Webb's infrared.

This example of the two telescopes working side-by-side is exactly what NASA had envisioned, despite Webb ultimately being seen as the successor to the famous Hubble....
Cheers.
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Message 2104384 - Posted: 3 Aug 2022, 13:42:01 UTC - in response to Message 2104374.  
Last modified: 3 Aug 2022, 13:46:54 UTC

... 'The Silmarillion', it is almost 28 billion light-years away from Earth...

But... but... That just cannot be?! Can it??!

For our universe that is a mere 13.8 Billion years old... How can we see light from 28 Billion light-years away? Isn't that light somehow 14 Billion years too old?!!!

For a fun deboggling explanation, see:

Physics Girl - We can see things moving faster than light
wrote:
How is it possible for galaxies and objects in space to move away from us faster than the speed of light? Will we ever see those objects?



And for an update on the present state of play for the JWST and for what happens next, see:

THE ROYAL INSTITUTION - Solar system science from the James Webb Space Telescope – with Naomi Rowe-Gurney
wrote:
What is the JWST, and what big science questions can it answer? Join NASA scientist Naomi as she discusses the new JWST images, along with her research into the ice giants, Uranus and Neptune, and the many other areas that JWST can help with.

Watch the Q&A here: https://youtu.be/Q8M6pnTEIKw

That presentation is perhaps the best I've seen so far, beautifully presented by a researcher who has literally grown up with the telescope itself.


Enjoy!

Keep searchin'!
Martin
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Message boards : SETI@home Science : James Webb Space Telescope Will Hunt for Signs of Life on Exoplanets; First good pics 12th July 2022


 
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