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chasilyesterday at 9:07 PM1 replyview on HN

The Chinese built a much larger spherical telescope, so what was the point of rebuilding Arecibo?

I visited Arecibo a decade before it collapsed. It was impressive and of great historical value, but could repair be cost-effective?

Edit: It did have some unique features.

https://en.wikipedia.org/wiki/Five-hundred-meter_Aperture_Sp...


Replies

wat10000yesterday at 9:44 PM

Rebuilding it would cost maybe half a billion dollars. Give ICE an unpaid week off and job done. Maybe not the absolute best way to spend that money on science, but I fear the actual outcome is “it’s not cost effective so we’re not going to spend it on any science.”

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