3 ms·

This article leaves me with more questions than answers :-) I seem to recall that LIGO budget was in the billions, this on the order of 150M. Where does this h

This article leaves me with more questions than answers :-) I seem to recall that LIGO budget was in the billions, this on the order of 150M. Where does this huge difference in costs come from? Is it related to LIGO being the first, and now some previous unknowns are now known? Or something else entirely? Digging those tunnels can't have been cheap... What's the expected sensitivity, compared to LIGO and Virgo?

wallace_f 8y ago
The state of the US launch market and the experience of the Shuttle program can serve as lessons that your concerns should not be ignored.
magicalhippo 8y ago
As far as I can tell, the 1.1 billion figure for LIGO includes[1] all of the test projects and other stuff. As far as I can tell it seems the ~150M figure for KAGRA is just for the KAGRA project. [1]: https://www.ligo.caltech.edu/system/media_files/binaries/300/original/ligo-fact-sheet.pdf https://www.ligo.caltech.edu/system/media_files/binaries/300...