@OldSchoolGadgetLover:
One in _70_. And that, I believe, is the risk of dying on this specific mission, with all the "might tear a hole in your spacesuit" action. Or the point where they thought one guy might end up shattering his faceplate.
I saw this last night with my dad. Pretty cool but I kept wondering if perhaps NASA's objection shouldn't be tweaked slightly, especially in terms of costs. I believe NASA should continue to get lots of funding but it seems like they waste a lot of it too.
Part of the show talked about how they had to come up with all these tools and things to solve their unique problems dealing with this really really expensive piece of technology (ex. not letting the screws flow away for fear of scratching the lens) and I just kept wondering if they had to make it so complicated. With the screws example, there was one panel that had over 100. Couldn't they have used 50 to hold that panel in place?
Another example was developing what was essentially a power screwdriver with a light on it that would function in space. Sure it's necessary but when they were testing the tool underwater, they found that the light was interfering with the lining up of the screwdriver head with the screw. Did they really need to do a full on test where the guys had to suit up, all the equipment get lowered, all pieces in place to test that new tool? Shouldn't a preliminary test have been a guy just holding it underwater and trying it out in his bathtub or something? Think about all the cost wasted because they didn't find out about this issue till later.
I'm sure the Hubble really does need all this precise equipment to maintain, because it's like a very high priced supercar where everything is measured to many decimal points. But then my counter-argument is that what good is it if we find a galaxy over 200 lightyears away if we can't even get a person to Mars and back yet. Shouldn't we be focusing more on improving interplanetary transport methods rather than taking a picture of something we can't reach in several lifetimes?
Again, I'm all for NASA and what they do and I look in awe of the shots that the Hubble takes just like everyone else. But can't we focus on more immediate space things? Do we really need that incredible picture of the far off galaxy right now, this minute? Or can it wait 100 years or after we've got better shuttles and maybe a better station/outpost or two?
@phoenix6666:
The panel with all the screws was something that was not designed with eventual replacement in mind. It was a one-time install, so the number of screws was possibly determined by something more related to the function, such as eliminating a potential source of vibration.
As for testing the tool, they weren't testing the tool. They were practicing the process. That's the entire process, not just some small aspect of it. As they said, there is a long list of all the things that can go wrong on a mission like this, and their job is to catch as many of those as possible before launch day. It's not just about whether that tool will function properly, but also about making sure the astronauts have practiced every aspect of the mission until it's second nature. For two years, that's their job. Learn the mission.
As for waiting 100 years to get started on this stuff, I'm sure if you were an astrophysicist, you'd see the fundamental flaw in that argument.
one thing to note: this show isn't actually on TV today; it was on last night. if you want to see it in all it's high def glory, it looks like it will only be on in the wee hours of the morning on Friday (at least in Chicago), so set your DVR.
otherwise, PBS is releasing the whole thing for viewing online if you follow the link at the end of the article. it's supposed to be put up at some point today.
Hubble got off to a rocky start, but has certainly more than proven itself worthwhile in the long haul. It sort of endears itself because of all its troubles, and yet it sends is back these AMAZING images.
@Curves:
Every time I hear about how important the Hubble is as a scientific instrument, I can't help but think back to those days when it really was NASA's biggest black eye. At the time, I can't recall any media source even entertaining the thought that it could be fixed, so from everything I heard it was like they put a school bus into orbit and that's about as useful as it would ever be. Sometimes it's nice to be proven wrong...
Why do you have to go so fast and use so much fuel to escape the earth's gravity? Wouldn't it, like a car, be more fuel efficient to go more slowly to reduce drag from air resistance? I don't get why you can't reach orbit going slowly. Either way you're moving up more quickly than the earth's gravity is pulling you down.
@Elliuotatar: There is this great internet site call www.google.com it's very cool you can type in stupid questions and it will give you answers and not make fun of you.
It's astounding that with all the hours of planning involved there are still unpredictable events. This time it wasn't bad, but you never know what will happen next time.
10/14/09
10/14/09
One in _70_. And that, I believe, is the risk of dying on this specific mission, with all the "might tear a hole in your spacesuit" action. Or the point where they thought one guy might end up shattering his faceplate.
10/14/09
Part of the show talked about how they had to come up with all these tools and things to solve their unique problems dealing with this really really expensive piece of technology (ex. not letting the screws flow away for fear of scratching the lens) and I just kept wondering if they had to make it so complicated. With the screws example, there was one panel that had over 100. Couldn't they have used 50 to hold that panel in place?
Another example was developing what was essentially a power screwdriver with a light on it that would function in space. Sure it's necessary but when they were testing the tool underwater, they found that the light was interfering with the lining up of the screwdriver head with the screw. Did they really need to do a full on test where the guys had to suit up, all the equipment get lowered, all pieces in place to test that new tool? Shouldn't a preliminary test have been a guy just holding it underwater and trying it out in his bathtub or something? Think about all the cost wasted because they didn't find out about this issue till later.
I'm sure the Hubble really does need all this precise equipment to maintain, because it's like a very high priced supercar where everything is measured to many decimal points. But then my counter-argument is that what good is it if we find a galaxy over 200 lightyears away if we can't even get a person to Mars and back yet. Shouldn't we be focusing more on improving interplanetary transport methods rather than taking a picture of something we can't reach in several lifetimes?
Again, I'm all for NASA and what they do and I look in awe of the shots that the Hubble takes just like everyone else. But can't we focus on more immediate space things? Do we really need that incredible picture of the far off galaxy right now, this minute? Or can it wait 100 years or after we've got better shuttles and maybe a better station/outpost or two?
10/14/09
The panel with all the screws was something that was not designed with eventual replacement in mind. It was a one-time install, so the number of screws was possibly determined by something more related to the function, such as eliminating a potential source of vibration.
As for testing the tool, they weren't testing the tool. They were practicing the process. That's the entire process, not just some small aspect of it. As they said, there is a long list of all the things that can go wrong on a mission like this, and their job is to catch as many of those as possible before launch day. It's not just about whether that tool will function properly, but also about making sure the astronauts have practiced every aspect of the mission until it's second nature. For two years, that's their job. Learn the mission.
As for waiting 100 years to get started on this stuff, I'm sure if you were an astrophysicist, you'd see the fundamental flaw in that argument.
10/14/09
10/14/09
otherwise, PBS is releasing the whole thing for viewing online if you follow the link at the end of the article. it's supposed to be put up at some point today.
10/14/09
10/14/09
Every time I hear about how important the Hubble is as a scientific instrument, I can't help but think back to those days when it really was NASA's biggest black eye. At the time, I can't recall any media source even entertaining the thought that it could be fixed, so from everything I heard it was like they put a school bus into orbit and that's about as useful as it would ever be. Sometimes it's nice to be proven wrong...
08/27/09
08/27/09
08/27/09
08/27/09
08/26/09
08/27/09
08/26/09
08/27/09
08/26/09
08/26/09
07/17/09
07/17/09
...where did they expect it to fall from then???
07/17/09
07/17/09
07/17/09
07/17/09
07/17/09
07/17/09
07/17/09