Author Topic: NASA - James Webb Space Telescope - Discussion and Updates  (Read 255531 times)

Offline Blackstar

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Re: NASA - James Webb Space Telescope - Discussion and Updates
« Reply #720 on: 05/03/2018 10:27 PM »
It's in testing. Some things will not go right. That's what testing is for. That's why you do testing.

The thing to ask is if the things that are going wrong are big things or small things. Big things would be instruments not working, electronics not working, EM interference with systems, problems with getting down to the design temperatures. None of that is happening.

Offline eeergo

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Re: NASA - James Webb Space Telescope - Discussion and Updates
« Reply #721 on: 05/03/2018 11:33 PM »
However it's also surprising (and unsettling) that after many billion dollars spent, "screws and washers" fall out. That could easily lead to big things failing.
-DaviD-

Offline kch

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Re: NASA - James Webb Space Telescope - Discussion and Updates
« Reply #722 on: 05/03/2018 11:46 PM »
However it's also surprising (and unsettling) that after many billion dollars spent, "screws and washers" fall out. That could easily lead to big things failing.

Indeed it could!  Better to find (and fix) them now, rather than after launch, yes?  :)

Offline kch

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Re: NASA - James Webb Space Telescope - Discussion and Updates
« Reply #723 on: 05/03/2018 11:50 PM »
Such as the 2012-2013 budget crash when they dropped ESA Exomars ? Only to get a far more expensive and capable Mars 2020 soon thereafter.  ::)

Although the withdrawal of the US from the project adds to my worry about the landing outcome in 2021, some have actually gained from this :) Yes, the current ExoMars-Trace Gas Orbiter is quite different from what was originally envisioned. But because of this, we, Bulgarians, have the chance to fly our own instrument due to our collaboration with the Russians (Lulin-MO attached to FREND). And the Russians also had the chance to refly some of their heritage from Phobos-Grunt and Mars-96 mssions.

Now Trace Gas Orbiter is in orbit, and ... it's good news. For those who participate in the project, at least.

For all of us.  :)

Offline Star One

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Re: NASA - James Webb Space Telescope - Discussion and Updates
« Reply #724 on: 05/22/2018 08:08 PM »

Scientific Discovery with the James Webb Space Telescope

Quote
For the past 400 years, astronomers have sought to observe and interpret the Universe by building more powerful telescopes. These incredible instruments extend the capabilities of one of our most important senses, sight, towards new limits such as increased sensitivity and resolution, new dimensions such as exploration of wavelengths across the full electromagnetic spectrum, new information content such as analysis through spectroscopy, and new cadences such as rapid time-series views of the variable sky. The results from these investments, from small to large telescopes on the ground and in space, have completely transformed our understanding of the Universe; including the discovery that Earth is not the center of the Universe, that the Milky Way is one among many galaxies in the Universe, that relic cosmic background radiation fills all space in the early Universe, that that the expansion rate of the Universe is accelerating, that exoplanets are common around stars, that gravitational waves exist, and much more. For modern astronomical research, the next wave of breakthroughs in fields ranging over planetary, stellar, galactic, and extragalactic science motivate a general-purpose observatory that is optimized at near- and mid-infrared wavelengths, and that has much greater sensitivity, resolution, and spectroscopic multiplexing than all previous telescopes. This scientific vision, from measuring the composition of rocky worlds in the nearby Milky Way galaxy to finding the first sources of light in the Universe to other topics at the forefront of modern astrophysics, motivates the state-of-the-art James Webb Space Telescope (Webb). In this review paper, I summarize the design and technical capabilities of Webb and the scientific opportunities that it enables.

https://arxiv.org/abs/1805.06941

Offline bolun

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Re: NASA - James Webb Space Telescope - Discussion and Updates
« Reply #725 on: 06/06/2018 11:34 AM »
#14: TESTS, MOVING TO A NEW HOME, AND MORE TESTS

04 June 2018 10:00

In the last year, the James Webb Space Telescope (JWST) and in particular the telescope and the instruments have passed some key milestones on their road towards launch, now planned for 2020.

http://sci.esa.int/jwst/60351-14-tests-moving-to-a-new-home-and-more-tests/

Image credit: NASA/Chris Gunn

Offline catdlr

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Re: NASA - James Webb Space Telescope - Discussion and Updates
« Reply #726 on: 06/06/2018 04:07 PM »
#14: TESTS, MOVING TO A NEW HOME, AND MORE TESTS

04 June 2018 10:00

In the last year, the James Webb Space Telescope (JWST) and in particular the telescope and the instruments have passed some key milestones on their road towards launch, now planned for 2020.

http://sci.esa.int/jwst/60351-14-tests-moving-to-a-new-home-and-more-tests/

Image credit: NASA/Chris Gunn

Recent article but all old news (old article must have been updated with some new info).   It's been here at Northrup Space division in Redondo Beach for several months.
Tony De La Rosa

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