Aricebo radio observatory to be decommisioned

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Dave
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Aricebo radio observatory to be decommisioned

Post by Dave » Thu Nov 19, 2020 6:33 pm

it looks as if old age and corrosion have caught up with Aricebo, and the structure has deteriorated to the point where there's no safe way to repair it.

https://www.nsf.gov/news/news_summ.jsp?cntn_id=301674

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AnotherFairportfan
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Re: Aricebo radio observatory to be decommisioned

Post by AnotherFairportfan » Thu Nov 19, 2020 7:05 pm

Dave wrote:
Thu Nov 19, 2020 6:33 pm
it looks as if old age and corrosion have caught up with Aricebo, and the structure has deteriorated to the point where there's no safe way to repair it.

https://www.nsf.gov/news/news_summ.jsp?cntn_id=301674
Yeah - it's HOW old?
Proof Positive the world is not flat: If it were, cats would have pushed everything off the edge by now.

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Dave
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Re: Aricebo radio observatory to be decommisioned

Post by Dave » Thu Nov 19, 2020 7:47 pm

57. No wonder it has developed tendinitis and fallen arches.

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Re: Aricebo radio observatory to be decommisioned

Post by Typeminer » Thu Nov 19, 2020 7:48 pm

It's a shame. That thing was amazing. They don't mention any plans to build a new one.
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Dave
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Re: Aricebo radio observatory to be decommisioned

Post by Dave » Thu Nov 19, 2020 9:16 pm

Typeminer wrote:
Thu Nov 19, 2020 7:48 pm
It's a shame. That thing was amazing. They don't mention any plans to build a new one.
I doubt that they will replace it with anything directly similar.

Technology and technique has moved on. These days, the preferred approach seems to be to build networks and arrays of smaller radio-telescopes, and use them to "synthesize" the equivalent of a single much larger dish. That's how they created those amazing images of the accretion disk around a black hole - the network of time-synchronized dishes and receivers gave them the same angular resolution as a single dish thousands of miles across.

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AnotherFairportfan
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Re: Aricebo radio observatory to be decommisioned

Post by AnotherFairportfan » Thu Nov 19, 2020 9:26 pm

Dave wrote:
Thu Nov 19, 2020 7:47 pm
57. No wonder it has developed tendinitis and fallen arches.
Well, it's younger than either of my younger brothers.

{Not by a LOT in Jim's case - he turned sixty-one earlier this year...}
Proof Positive the world is not flat: If it were, cats would have pushed everything off the edge by now.

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Re: Aricebo radio observatory to be decommisioned

Post by Warrl » Thu Nov 19, 2020 11:26 pm

Dave wrote:
Thu Nov 19, 2020 9:16 pm
These days, the preferred approach seems to be to build networks and arrays of smaller radio-telescopes, and use them to "synthesize" the equivalent of a single much larger dish.
And I keep wondering if anyone's tried that systematically with *optical* telescopes.

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Dave
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Re: Aricebo radio observatory to be decommisioned

Post by Dave » Thu Nov 19, 2020 11:47 pm


Typeminer
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Re: Aricebo radio observatory to be decommisioned

Post by Typeminer » Fri Nov 20, 2020 8:10 am

Dave wrote:
Thu Nov 19, 2020 9:16 pm
Typeminer wrote:
Thu Nov 19, 2020 7:48 pm
It's a shame. That thing was amazing. They don't mention any plans to build a new one.
I doubt that they will replace it with anything directly similar.

Technology and technique has moved on. These days, the preferred approach seems to be to build networks and arrays of smaller radio-telescopes, and use them to "synthesize" the equivalent of a single much larger dish. That's how they created those amazing images of the accretion disk around a black hole - the network of time-synchronized dishes and receivers gave them the same angular resolution as a single dish thousands of miles across.
That's a good point. Believe I also read somewhere in the past few months that the U.S. is de facto abandoning its traditional lead in big-investment astronomy.
Saccharomyces cerevisiae is the linchpin of civilization.

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Re: Aricebo radio observatory to be decommisioned

Post by TazManiac » Mon Nov 23, 2020 9:09 am

Jodie Foster!, Where are you when we need you!?

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