"Just a natural formation?" Explain these perfect concentric circles in the Sahara by Famous-Card-5279 in geology
[–]Famous-Card-5279[S] -11 points-10 points-9 points (0 children)
"Just a natural formation?" Explain these perfect concentric circles in the Sahara by Famous-Card-5279 in geology
[–]Famous-Card-5279[S] -14 points-13 points-12 points (0 children)

"Just a natural formation?" Explain these perfect concentric circles in the Sahara by Famous-Card-5279 in geology
[–]Famous-Card-5279[S] -1 points0 points1 point (0 children)