Anyone on the NH/VT/ME/NY area catch the weird noise last night (10/20/23) sometime around 8:00 pm. Mount Washington Observatory posted about it on Facebook. Here in Whitefield, NH heard a deep thumping and rumble. Thought it was the neighbor's kid driving driving down the road with a big diesel pickup with loud exhaust and a bass tube, but it lasted longer than that and lacked the typical doppler effect of a vehicle driving by. Definitely wasn't the same as the NH National Guard Blackhawk or the F-35s out of Burlington.