FYI - online petition to keep Voyager & Hubble programs going

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Discussion Overview

The discussion revolves around the potential discontinuation of the Hubble Space Telescope and the implications of such a decision, particularly in relation to the James Webb Space Telescope and the Voyager missions. Participants explore the value of Hubble's continued operation, the capabilities of current and future telescopes, and the allocation of funding in space exploration.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Exploratory

Main Points Raised

  • Some participants question what the funds saved from abandoning Hubble would be redirected towards.
  • There is a suggestion that the Hubble and Webb telescopes could complement each other, with Webb optimized for infrared and Hubble for visible light, enhancing overall observational capabilities.
  • Concerns are raised about the potential waste of resources if Hubble is decommissioned, especially given its ability to provide follow-up observations that Webb may not be able to perform due to atmospheric limitations.
  • Participants express uncertainty about the useful life of telescopes and the importance of maintaining Hubble if it can be kept operational.
  • One participant reflects on historical advancements in satellite imaging technology and questions the transparency of funding for such projects.
  • There is mention of a new telescope being constructed, which is identified as the James Webb Space Telescope, although some participants express doubt about its capabilities compared to Hubble.
  • Another participant emphasizes the critical need for data collection in the current scientific climate, advocating for the continuation of the Hubble program.

Areas of Agreement / Disagreement

Participants express differing views on the necessity and future of the Hubble Space Telescope, with no consensus reached on whether it should be maintained or decommissioned. There are competing perspectives on the capabilities of Hubble versus Webb and the implications of funding decisions.

Contextual Notes

Participants reference the operational capabilities of telescopes and the potential for complementary observations, but there are unresolved questions regarding the specifics of funding allocations and the long-term viability of Hubble.

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http://www.planetary.org/voyager_hubble/
 
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Question, what will money saved by abandoning the Hubble be spent on ?
How much more information can the voyagers give us ?
 
wolram said:
Question, what will money saved by abandoning the Hubble be spent on ?
I think a good question would be "what can Hubble and Webb do together that neither could do alone?" Webb will be optimised for longer wavelenths and will likely discover things that would benefit from HST follow-up. Ditching HST into the ocean will be a terrible waste, and after Webb comes on line, we will find out just how big our loss is when our ability to do follow-ups is limited by atmospheric conditions at the big ground-based scopes.

What is the useful life of a telescope? If we can keep Hubble in good repair, its time will be fully-subscribed for decades to come, guaranteed. If we are unwilling or unable to service it maybe we should learn to build things a little more cheaply.

I wonder how much of the US's "black budget" is devoted to the launching and targeting wonderful optical instruments that are only trained on the earth. When studying photogrammetry in the 1970s, I saw a full-color satellite image of Russian workers going into their factory. You could distinguish the women by their colorful babushkas. This was 30 years ago, folks, and the image was probably at least a decade old, or it would not have been declassified so mere college students could see it. I had already had three years of college and then worked another couple of years in the construction business before I realized that image analysis and mapmaking might be an interesting place to be. The resolution of our spy satellites in the optical (30 years ago!) is stunning - I would love to know what detector technology our tax dollars have paid for, and that we will not see in common usage for another 20 years in the interests of "national security".
 
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Arent they constructing a new telescope that is an improved version of Hubble? Heard something liek it a long time ago so i might be wrong.
 
Pengwuino said:
Arent they constructing a new telescope that is an improved version of Hubble? Heard something liek it a long time ago so i might be wrong.
It is the James Webb telescope:

http://www.jwst.nasa.gov/

The people who want to ditch Hubble would like you to think Webb is "bigger and better", but they won't tell you that the Webb is optimized for infrared observations and doesn't have the capabilities that Hubble has in the visible light range. These telescopes would enhance one another, not compete.
 
Hey i heard of that at this lecture about 8 months ago! They were talken about its infrared observations as opposed to the visible that Hubble can.
 
I have signed up, it seems to me the loss is to great at a time when every
scrap of data is vital.
 

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