The Great Atlantic Garbage Patch!
I however would caption this, "The Island of Great Britain, with parts of Ireland and Brittany". One cannot usually see political boundaries from space, although there are exceptions. The border between Haiti and Santo Domingo is a well-known one, but differences in land surveying make the US/Mexico border visible in the Southwest as a kind of difference in texture.
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko