I've had Thargoid ships visit sites while I was there a handful of times but I never saw anything this spectacular before. I was very lucky to have caught it.
Edit: added the whole clip to my original post above.
happens all the time at the barnacle forest, must say that 1st time when you don't expect it is a bit of a shaky moment
love those shimmers it leaves in its wake
First time it happened to me I was close in my srv and it started to rock up and down. It was trying to pull in my srv but it was just a tad bit too heavy. It was pretty unnerving. I'd love to see what happens when you do this on foot in Odyssey.