For the past month or so, the Drygalski ice tongue - easily visible in lo-res Keyhole - was threatened by the Long Island-sized iceberg known as B15A. Scientists awaited the seemingly inevitable collision, but B15A ran aground in late January, missing the ice tongue by just a few kilometers. The corner of the errant berg's current resting place is visible in the overlay photo, taken 2/21/05.
B15A's journey, from NASA:
More info on the placemark description tab, along with:
NASA Earth Observatory and
NASA Life on Earth
"Artistic license" (ok, blatant liberties) were taken in aligning this overlay: due to the angle of the shot and proximity to the south pole - where compassy things get iffy - it's hard to get everything to agree, so I lined up as near as possible to the Keyhole view of the tongue itself. The coast and compass are sacrificed a bit, as well as absolute accuracy to the distance legend. But it looks cool
There aren't many placemarks in Antarctica, but it's ever-changing as this overlay and animation show.