HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Topics » Science » Science (Group) » James Webb Space Telescop...

Thu May 13, 2021, 03:01 AM

James Webb Space Telescope's golden mirror in final test

Jonathan Amos
Science correspondent
@BBCAmoson Twitter

Published 19 hours ago

The technological marvel that is the James Webb Space Telescope (JWST) is going through final testing before being shipped to the launch site.

The successor to the mighty Hubble is due to leave Earth in October to begin a new era of astronomical discovery.

One of Webb's key objectives will be to catch the glow from the first stars to shine in the Universe.

To do this, it's been given a 6.5m-wide, golden mirror that engineers are now checking one last time.

The segmented reflector has to be folded to fit inside the launch rocket - that's how big it is; and the technicians at aerospace manufacturer Northrop Grumman want to be sure that it'll have no problems being straightened out again once in space.

More:
https://www.bbc.com/news/science-environment-57078657

15 replies, 4851 views

Reply to this thread

Back to top Alert abuse

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread
Arrow 15 replies Author Time Post
Reply James Webb Space Telescope's golden mirror in final test (Original post)
Judi Lynn May 13 OP
ZZenith May 13 #1
burrowowl May 13 #2
ZZenith May 13 #3
spike jones May 13 #4
ZZenith May 13 #5
denbot May 14 #8
ZZenith May 14 #9
LudwigPastorius May 13 #6
ZZenith May 14 #7
Kid Berwyn May 15 #10
renate May 19 #13
Kid Berwyn May 19 #14
Judi Lynn May 19 #15
RicROC May 16 #11
JohnnyRingo May 17 #12

Response to Judi Lynn (Original post)

Thu May 13, 2021, 04:54 AM

1. We're some pretty smart monkeys, all things considered.

Crawled out of the slime just a while back and now here we are slinging giant mirrors up into space to get a better view of the neighborhood.

Gotta love humans.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to ZZenith (Reply #1)

Thu May 13, 2021, 05:30 AM

2. Yes lol

We should do more of this and less of war and earth destruction

Reply to this post

Back to top Alert abuse Link here Permalink


Response to burrowowl (Reply #2)

Thu May 13, 2021, 05:32 AM

3. I'm 100% with burrowowl on this one.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to ZZenith (Reply #1)

Thu May 13, 2021, 02:53 PM

4. Humans and chimps share 99% of DNA.

That one percent is the difference between sitting in the woods eating rotten fruit with your hands, and going to the moon.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to spike jones (Reply #4)

Thu May 13, 2021, 07:17 PM

5. I personally like to sit in the woods and eat rotten fruit with my hands.

And have never been to the moon.

I’m a m-m-m-m-monkey!

Reply to this post

Back to top Alert abuse Link here Permalink


Response to ZZenith (Reply #5)

Fri May 14, 2021, 04:49 PM

8. LoL

Me too, me too!

Reply to this post

Back to top Alert abuse Link here Permalink


Response to denbot (Reply #8)

Fri May 14, 2021, 05:46 PM

9. !!!

Reply to this post

Back to top Alert abuse Link here Permalink


Response to ZZenith (Reply #1)

Thu May 13, 2021, 10:59 PM

6. We can be smart, but...

I'm starting to believe the "Great Filter" (the umbrella term for the theories on why we don't 'see' a galaxy teeming with intelligent life) will be our own greed and paranoia.

Sad to say, we'll probably off ourselves as a species before a giant rock does the job.

(...just spreading little rays of sunshine today.)

Reply to this post

Back to top Alert abuse Link here Permalink


Response to LudwigPastorius (Reply #6)

Fri May 14, 2021, 12:54 AM

7. Thanks for sharing, LudwigPastorius.



The world needs “glass completely empty” people too, I suppose.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Judi Lynn (Original post)

Sat May 15, 2021, 09:54 AM

10. Light Bucket Time Machine

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Kid Berwyn (Reply #10)

Wed May 19, 2021, 12:42 AM

13. Oh wow wow wow!!!

Now I REALLY can’t wait! Woo hoo!!!

Reply to this post

Back to top Alert abuse Link here Permalink


Response to renate (Reply #13)

Wed May 19, 2021, 01:16 AM

14. We live in interesting times.

The 5 Massive New Telescopes That Will Change Astronomy Forever

https://gizmodo.com/the-5-massive-new-telescopes-that-will-change-astronomy-1610529758

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Kid Berwyn (Reply #14)

Wed May 19, 2021, 05:17 AM

15. What a link! Thank you for sharing this. Wonderful. ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ ⭐

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Judi Lynn (Original post)

Sun May 16, 2021, 10:36 AM

11. I'd also be in favor of someone rebuilding...

the Arecibo telescope in Puerto Rico. Visited there once and was impressed.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Judi Lynn (Original post)

Mon May 17, 2021, 08:06 PM

12. Thanx For Posting!

I didn't know it was getting ready to launch.
Fingers crossed.

Reply to this post

Back to top Alert abuse Link here Permalink

Reply to this thread