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James Webb Space Telescope, information, updates and discussion
Redstone
post Aug 23 2005, 02:01 PM
Post #101


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The manufacture of the JWST mirror blanks has now been completed.

Despite this milestone, the fate of JWST is still somewhat precarious, because although the scientific bang from the telescope is expected to be huge, the bucks required have increased to a staggering $4.5 billion. A Space.com article on the squeeze in NASA's space-based astronomy plans gives some background.

The JWST home page can be found here.

The Space Telescope Science Institute, which runs Hubble, also has a site here. As does ESA.
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Posts in this topic
- Redstone   James Webb Space Telescope   Aug 23 2005, 02:01 PM
- - Decepticon   Another Delay. No earlier than the 24th of Decemb...   Dec 15 2021, 01:12 PM
- - nprev   Launch window opens at 1220 GMT, NASA TV coverage ...   Dec 25 2021, 04:11 AM
|- - MahFL   Fingers crossed...   Dec 25 2021, 04:32 AM
- - bobik   Nice daybreak in Kourou, when the birds began to s...   Dec 25 2021, 09:44 AM
|- - MahFL   2 mins...   Dec 25 2021, 12:18 PM
- - Antdoghalo   HERE WE GO!!!   Dec 25 2021, 12:20 PM
|- - JRehling   Everything perfect throughout launch and 30 minute...   Dec 25 2021, 12:54 PM
- - nprev   Textbook launch & separation, successful array...   Dec 25 2021, 12:52 PM
- - Explorer1   A long journey is over, but another long one has j...   Dec 25 2021, 12:54 PM
- - Brian Swift   Also cool that there are "amateurs" out ...   Dec 27 2021, 11:05 PM
|- - Keatah   The tracking page's numbers are derived from p...   Dec 28 2021, 01:04 AM
- - scalbers   Yes interesting that the burns can only speed up J...   Dec 28 2021, 01:21 AM
- - abalone   Forward and aft sun-shield pallets successfully de...   Dec 28 2021, 11:50 PM
- - jmjawors   NASA is reporting that they have already used less...   Dec 29 2021, 04:59 PM
|- - JRehling   The possibility of a longer lifetime is phenomenal...   Dec 29 2021, 05:25 PM
|- - HSchirmer   QUOTE (JRehling)The possibility of a longer lifeti...   Dec 30 2021, 12:45 AM
|- - Explorer1   QUOTE (HSchirmer @ Dec 29 2021, 08:45 PM)...   Dec 30 2021, 02:18 AM
|- - JRehling   JWST's mirror and instruments will be in the d...   Dec 30 2021, 03:30 AM
- - vjkane   As I recall, missions that run out of fuel usually...   Dec 29 2021, 10:51 PM
- - serpens   Positioned in the the second Lagrange Point JWST w...   Dec 30 2021, 12:56 AM
|- - bobik   QUOTE (serpens @ Dec 30 2021, 01:56 AM) I...   Dec 30 2021, 05:41 AM
- - Explorer1   In the case of Intelsat, it was just attached and ...   Dec 30 2021, 04:47 AM
- - Keatah   Pretty sure I recall a NASA official saying they w...   Dec 30 2021, 09:35 AM
- - craigmcg   QUOTE (Redstone @ Aug 23 2005, 09:01 AM) ...   Dec 30 2021, 01:52 PM
- - PDP8E   ... is there an engineering camera that can return...   Dec 30 2021, 04:06 PM
|- - jmjawors   QUOTE (PDP8E @ Dec 30 2021, 11:06 AM) ......   Dec 30 2021, 04:18 PM
|- - HSchirmer   QUOTE (PDP8E @ Dec 30 2021, 05:06 PM) ......   Dec 30 2021, 04:40 PM
|- - JRehling   Once the sunshield is partially unfolded, the rest...   Dec 30 2021, 05:58 PM
- - scalbers   Perhaps a low light camera can see the silhouette ...   Dec 30 2021, 06:04 PM
- - walfy   Maybe they left out cameras to eliminate any unnec...   Dec 31 2021, 06:46 PM
|- - Tom Tamlyn   QUOTE (walfy @ Dec 31 2021, 01:46 PM) May...   Jan 3 2022, 07:13 PM
|- - scalbers   QUOTE (walfy @ Dec 31 2021, 06:46 PM) May...   Jan 7 2022, 03:52 PM
|- - JRehling   Amateur telescopes will be able to image JWST (as ...   Jan 7 2022, 04:46 PM
- - scalbers   Some suspense with a successful first side arm dep...   Jan 1 2022, 01:46 AM
- - jmjawors   It looks like they're giving themselves some t...   Jan 1 2022, 11:16 PM
- - jmjawors   The first layer has been tensioned. First Layer o...   Jan 3 2022, 11:15 PM
|- - floron   That was quick! https://blogs.nasa.gov/webb/...   Jan 4 2022, 02:49 AM
- - B Bernatchez   Sunshield fully tensioned! https://www.nasa.g...   Jan 4 2022, 07:10 PM
|- - MichaelJWP   QUOTE (B Bernatchez @ Jan 4 2022, 08:10 P...   Jan 5 2022, 09:48 AM
|- - stevesliva   QUOTE (MichaelJWP @ Jan 5 2022, 04:48 AM)...   Jan 5 2022, 03:02 PM
|- - mcaplinger   QUOTE (MichaelJWP @ Jan 5 2022, 01:48 AM)...   Jan 5 2022, 07:48 PM
|- - Keatah   QUOTE (mcaplinger @ Jan 5 2022, 08:48 PM)...   Jan 6 2022, 01:52 AM
|- - MichaelJWP   QUOTE (mcaplinger @ Jan 5 2022, 07:48 PM)...   Jan 6 2022, 11:29 AM
|- - mcaplinger   QUOTE (MichaelJWP @ Jan 6 2022, 03:29 AM)...   Jan 6 2022, 04:39 PM
|- - MichaelJWP   QUOTE (mcaplinger @ Jan 6 2022, 04:39 PM)...   Jan 6 2022, 09:42 PM
- - scalbers   Some live coverage here, secondary mirror already ...   Jan 5 2022, 04:42 PM
|- - PaulM   QUOTE (scalbers @ Jan 5 2022, 05:42 PM) S...   Jan 5 2022, 07:15 PM
- - B Bernatchez   Secondary mirror deployed and latched. https://blo...   Jan 5 2022, 11:07 PM
- - centsworth_II   This may help.   Jan 6 2022, 01:58 PM
|- - MichaelJWP   QUOTE (centsworth_II @ Jan 6 2022, 01:58 ...   Jan 6 2022, 02:15 PM
- - climber   Questions : is Chang’e 2 orbiter still in L2 ? I b...   Jan 7 2022, 03:42 PM
|- - stevesliva   QUOTE (climber @ Jan 7 2022, 10:42 AM) Qu...   Jan 7 2022, 03:44 PM
||- - CryptoEngineer   QUOTE (stevesliva @ Jan 7 2022, 11:44 AM)...   Jan 8 2022, 07:44 PM
|- - Quetzalcoatl   QUOTE (climber @ Jan 7 2022, 04:42 PM) Qu...   Jan 7 2022, 05:57 PM
- - djellison   It's worth adding - the Lagrange points are no...   Jan 7 2022, 06:14 PM
|- - Keatah   QUOTE (djellison @ Jan 7 2022, 07:14 PM) ...   Jan 8 2022, 09:20 PM
|- - mcaplinger   QUOTE (Keatah @ Jan 8 2022, 01:20 PM) For...   Jan 8 2022, 10:16 PM
- - climber   Thanks Doug, I knew it was a halo but didn’t knew ...   Jan 7 2022, 07:22 PM
|- - JRehling   The left wing of primary mirror segments has been ...   Jan 7 2022, 07:38 PM
- - jmjawors   The telescope is now fully deployed, though latchi...   Jan 8 2022, 03:54 PM
|- - JRehling   This is a slowly-unfolding victory taking place. T...   Jan 8 2022, 07:08 PM
- - Keatah   Not really worried about optics or focusing. Each ...   Jan 8 2022, 07:39 PM
- - Paolo   CE-2 is in solar orbit after flying by Toutatis. C...   Jan 8 2022, 08:18 PM
- - scalbers   Heidi Hammel addressed this at today's excelle...   Jan 8 2022, 09:24 PM
|- - JRehling   I hope that the images that JWST will actually tak...   Jan 9 2022, 12:21 AM
|- - fredk   QUOTE (JRehling @ Jan 9 2022, 01:21 AM) s...   Jan 9 2022, 06:13 PM
|- - JRehling   Here is the proposal. As you note, Jupiter is well...   Jan 9 2022, 09:05 PM
|- - fredk   QUOTE (JRehling @ Jan 9 2022, 10:05 PM) H...   Jan 10 2022, 01:03 AM
- - Decepticon   Out of curiosity does the public know the actual f...   Jan 9 2022, 07:23 AM
|- - JRehling   An analyst who put their mind to it might be able ...   Jan 9 2022, 07:34 AM
- - scalbers   Yes the background Milky Way galaxy glow is someth...   Jan 9 2022, 09:09 PM
|- - fredk   QUOTE (scalbers @ Jan 9 2022, 10:09 PM) Y...   Jan 10 2022, 01:13 AM
|- - Bill Harris   QUOTE (scalbers @ Jan 9 2022, 04:09 PM) Y...   Jan 12 2022, 07:17 PM
|- - kwp   QUOTE (Bill Harris @ Jan 12 2022, 11:17 A...   Jan 13 2022, 03:59 AM
- - atomoid   Was wondering to what extent Jupiter being relativ...   Jan 13 2022, 03:04 AM
- - Bill Harris   So this will indeed take us to the edge of the opt...   Jan 13 2022, 02:10 PM
|- - JRehling   For context, Planck has already mapped the microwa...   Jan 13 2022, 03:22 PM
- - fredk   Yeah, Planck (and others) have mapped the cosmic m...   Jan 14 2022, 08:41 PM
- - Explorer1   An individual mirror segment deployment tracker is...   Jan 17 2022, 05:16 PM
- - Floyd   They are cranking on moving the mirrors. Down to ...   Jan 18 2022, 01:12 PM
|- - HSchirmer   QUOTE (Floyd @ Jan 18 2022, 01:12 PM) The...   Jan 18 2022, 10:19 PM
- - Mongo   Now down to 0.0mm for all segments but A3 and A6, ...   Jan 18 2022, 10:06 PM
- - Floyd   Thanks for presenting your understanding of what m...   Jan 18 2022, 10:24 PM
- - Mongo   All segments now at 0.0mm:   Jan 19 2022, 02:33 PM
- - Keatah   Do the motors that performed the mirror extension ...   Jan 23 2022, 09:54 PM
|- - Gsnorgathon   That's my understanding.   Jan 24 2022, 02:33 AM
|- - StargazeInWonder   JWST has entered its mission orbit around L2! ...   Jan 24 2022, 08:55 PM
- - jmjawors   Such exciting news! This whole journey has ha...   Jan 24 2022, 10:39 PM
- - charborob   Webb first image (and a selfie to boot!).   Feb 11 2022, 03:34 PM
|- - Bill Harris   QUOTE (charborob @ Feb 11 2022, 10:34 AM)...   Feb 11 2022, 08:42 PM
- - Explorer1   Even more detail on this tracking page has been ad...   Feb 14 2022, 03:46 AM
- - jmjawors   More forward progress: Webb Team Brings 18 Dots o...   Feb 19 2022, 04:55 PM
- - Tom Tamlyn   NASA held an informative press conference today to...   Mar 16 2022, 09:07 PM
- - Tom Tamlyn   Still can't find a youtube link to today's...   Mar 16 2022, 11:23 PM
- - Bill Harris   As Tom reported, here is the first aligned and col...   Mar 17 2022, 03:29 AM
- - Floyd   The MIRI is now actively being cooled. For the pa...   Apr 1 2022, 11:59 PM
- - Marcin600   April 28: "...Alignment of NASA’s James Webb ...   Apr 30 2022, 07:51 PM
- - Marcin600   "NASA will hold a media teleconference at 11 ...   May 6 2022, 04:19 PM
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