For John, BLUF: Can something so small we can't detect impact anything? Nothing to see here; just move along.
"U.S. Restarts Hunt For Gravitational Waves With Advanced LIGO".♠
From IEEE Spectrum, by Reporter Rachel Courtland.
And, if they don't exist? Einstein was wrong and it is 52 card pickup in Physics.
Hat tip to the InstaPundit.
Regards — Cliff
♠ Perhaps due to the effect of Gravitational Waves, the headline, corrected here, misspelled "Gravitational", leaving out an "A" and a "T".