Author Topic: James Webb Telescope  (Read 442 times)

Offline Hydra009

James Webb Telescope
« on: December 19, 2021, 09:26:21 PM »
Executive summary: this telescope is a bigger, better, more badass Hubble and it'll help us find exoplanets, discover galaxies, and peer back to the beginning of the universe.

Two decades of hard work by some of the finest minds on the planet.  Scheduled to launch Christmas Eve 2021.  Fingers crossed.





https://jwst.nasa.gov/content/webbLaunch/countdown.html

Re: James Webb Telescope
« Reply #1 on: December 20, 2021, 09:50:16 PM »
Did they checked the damned mirror this time?
We 'new atheists' have a reputation for being militant, but make no mistake  we didn't start this war. If you want to place blame put it on the the religious zealots who have been poisoning the minds of the  young for a long long time."
PZ Myers

Offline Hydra009

Re: James Webb Telescope
« Reply #2 on: December 20, 2021, 10:28:29 PM »
Did they checked the damned mirror this time?
We'll see.  It'll be at Lagrange point 2 (basically, hiding behind Earth's shadow in order to keep its sensitive sensors as cool as possible) 1,500,000 km away from the Earth (about 4 times the distance to the moon), so it'll be too far away to service should something go wrong.  In comparison, the Hubble is a mere 540 km away.

Offline SGOS

Re: James Webb Telescope
« Reply #3 on: December 21, 2021, 09:35:46 AM »
We'll see.  It'll be at Lagrange point 2 (basically, hiding behind Earth's shadow in order to keep its sensitive sensors as cool as possible) 1,500,000 km away from the Earth (about 4 times the distance to the moon), so it'll be too far away to service should something go wrong.  In comparison, the Hubble is a mere 540 km away.
Holy crap!  These guys are getting serious about looking into outer space.  I went to a lecture by some Cal Tech guys who said we can't see the beginning of the universe, because the lights didn't come on until 250,000 years later.  I think at time, they were approaching the 250,000 year event.  I'm still hoping we will be able to see the beginning without the aid of light.  Surely if something happened, our guys must be smart enough to detect it.

Well, we think we have already detected it, but we didn't know what it was when we did. It's the back ground radiation that you can see on your TV when it's tuned to an empty channel, but I'm hoping for something more dramatic than that.
« Last Edit: December 21, 2021, 10:10:03 AM by SGOS »

Offline Hydra009

Re: James Webb Telescope
« Reply #4 on: December 21, 2021, 10:55:34 PM »
Launch pushed back to Christmas Day.

Re: James Webb Telescope
« Reply #5 on: December 22, 2021, 08:38:10 AM »
Saw an interesting graphic the other day. Picture ~ a dozen (didn't count them.) hexagons (JWT mirror). The Hubble mirror would cover the center hex and a bit of the surrounding hexs. The outer ring of hexs were more than one diameter away from the Hubble mirror. The ghost of Galileo is drooling somewhere out there. Ah, found it.

« Last Edit: December 22, 2021, 08:39:51 AM by Gawdzilla Sama »
We 'new atheists' have a reputation for being militant, but make no mistake  we didn't start this war. If you want to place blame put it on the the religious zealots who have been poisoning the minds of the  young for a long long time."
PZ Myers

Offline SGOS

Re: James Webb Telescope
« Reply #6 on: December 25, 2021, 07:26:44 AM »
It's on the way!  Final orbit will be 1 million miles from earth. 

Offline SGOS

Re: James Webb Telescope
« Reply #7 on: December 25, 2021, 07:38:35 AM »
There don't appear to be any anti-maskers at all in the control center.

Offline PopeyesPappy

Re: James Webb Telescope
« Reply #8 on: December 25, 2021, 10:13:45 AM »
6 months until they start their first science missions. :(

Hopefully we will get to see some of the focusing and alignment shots.
Save a life. Adopt a Greyhound.


Offline Hydra009

Re: James Webb Telescope
« Reply #9 on: December 25, 2021, 10:59:50 AM »
My brother asked why the countdown was in French and if they're launching from France.  🤦‍♂️

(It launched from French Guiana, in cloudy weather no less)
« Last Edit: December 25, 2021, 11:01:44 AM by Hydra009 »

Re: James Webb Telescope
« Reply #10 on: December 25, 2021, 11:41:18 AM »
We are fresh out of space shuttles if it doesn't deploy correctly. Perhaps Bezos can do a spacewalk if needs be.

Offline Hydra009

Re: James Webb Telescope
« Reply #11 on: December 26, 2021, 09:55:15 PM »
So far, so good!  The real test will be the deployment of the sunshield.

Re: James Webb Telescope
« Reply #12 on: December 27, 2021, 07:26:08 AM »
We are fresh out of space shuttles if it doesn't deploy correctly. Perhaps Bezos can do a spacewalk if needs be.
They have a squadron of Teslas ready if needed.
We 'new atheists' have a reputation for being militant, but make no mistake  we didn't start this war. If you want to place blame put it on the the religious zealots who have been poisoning the minds of the  young for a long long time."
PZ Myers

Offline Hydra009

Re: James Webb Telescope
« Reply #13 on: December 27, 2021, 11:44:17 PM »

Offline Hydra009

Re: James Webb Telescope
« Reply #14 on: December 29, 2021, 12:39:42 AM »
Sunshield deployed!