A zoomed-in view of Antarctica's Larsen C ice shelf, and iceberg A-68, on July 28, 2017. Deimos Imaging, an UrtheCast Company In early July, a rift in Antarctica's Larsen C ice shelf caused the third-largest iceberg ever recorded to break off.

The block of ice, dubbed iceberg A-68, may hang around for years in the open sea, and it is awesome in scale: roughly the area of Delaware, the mass of 5.6 Mount Everests, and voluminous enough to fill Lake Erie — more than twice.

Because it's the middle of winter in Antarctica, though, scientists have struggled to get good optical images of the iceberg. So far, they've relied on polar satellites like Sentinel-1, which uses radar to see through thick cloud cover.

However, a few days of clear weather in late July gave Deimos-1 and Deimos-2 — a pair of satellites that operate as a tag-team — a clear, visible-light view of the scene on the eastern Antarctic Peninsula.

"[T]hese images are striking — easily the best I have seen since calving," Adrian Luckman, a glaciologist at Swansea University and a member of the Antarctic research program Project Midas, told Business Insider in an email.

Here are the new photos, released by Deimos Imaging and Urthecast in an August 3 blog post, and what they show.

This story was updated to include comments by Adrian Luckman.