Comments on: AAS #1: Hubble Servicing Mission update

By: easy money

easy money — Fri, 02 Oct 2009 17:55:49 +0000

Se torna dificil colocar muebles en un piso con dimensiones peque

By: Barton Paul Levenson

Barton Paul Levenson — Wed, 09 Jan 2008 16:27:32 +0000

R2K posts:

[[If we had kept a Saturn V around, we could have launched a 7 - 10 meter telescope.]]

Hear, hear! Let’s hear it for big dumb boosters instead of “reusable” spaceships that still cost — what? A billion dollars each, plus $400 million for each launch? And Saturn could reach the Moon, which is a heck of lot further away than the shuttle can do. That damn thing has restricted us to low Earth orbit for 30 years.

I’m looking forward to Aries.

By: R2K

R2K — Wed, 09 Jan 2008 15:08:25 +0000

If we had kept a Saturn V around, we could have launched a 7 – 10 meter telescope.

By: Drive-By-Commenter

Drive-By-Commenter — Wed, 09 Jan 2008 02:28:19 +0000

Another minor goof in the article’s description: I think in the ACS repair the plan isn’t to “keep track of, and then reinstall” the screws that are removed. There is a fairly detailed description of the plan as of last October at http://www-int.stsci.edu/~sirianni/PRESENTATIONS/TIPS2007_October.ppt. If I understand that correctly though a bunch of screws have to be removed to allow the circuit boards to be pulled from the CCD Electronics Box (”CEB”), what goes back in is a replacement box (”CEB-R”) which locks into place much more simply.

By: Bryan

Bryan — Wed, 09 Jan 2008 02:13:39 +0000

Well, it seems that my “brother” (we were born 7 days apart) will finally be on its last legs. I know it will make the best of it.

Cheers!

By: Astronomy Cast - AAS #2: Interview with NASA astronaut John Grunsfeld

Astronomy Cast - AAS #2: Interview with NASA astronaut John Grunsfeld — Tue, 08 Jan 2008 22:55:29 +0000

[...] When they service Hubble, they’ll be using a special device to take off and capture the many, many screws of off STIS. I asked him what would happen if he lost one… (Link goes to YouTube video.) [...]

By: Ed Davies

Ed Davies — Tue, 08 Jan 2008 22:42:47 +0000

“…and it’s too heavy to bring down safely.”

Surely, that’s one of the few things the Shuttle is good at – bringing stuff down. Non-reusable rockets (e.g, Delta 4 or Ariane 5) can launch similar payloads but only the Shuttle can bring them back in one piece.

Hubble was launched by a Shuttle and they must have been able to re-enter safely with the telescope still on board; what if there had been a problem with the deployment? When they used Shuttles to launch multiple satellites they were always careful to deploy them in the right sequence so if a later one failed to release re-entry with the centre of gravity in the right place was still possible.

Still, I agree – it would not be worth the risk and cost just to put it in a museum.