A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Brad Morris
Date: 2017 Oct 18, 14:22 -0400
Scientists were able to use gravity waves to locate a kilonova in a specific region of the sky, and point their telescopes there to witness it:
Unfortunately, I don't think handheld gravity wave detectors will be a thing for a long, long time to come.