The NASA IceBridge project captured this view of a strange rectangular shaped iceberg in Antarctica in October 2018.
Credit: NASA IceBridge
Earlier this month, NASA published a strange and compelling picture of a ridiculously square iceberg. And NASA scientist Kelly Brunt speculated to Live Science that the mountain was probably pretty fresh, its sharp corners were the result of the recent break-up of an ice shelf and not much battered by the elements.
Since then, however, NASA has gone back and looked at even more evidence. And it turns out that the squareberg had a rougher birth than what was originally thought. Satellite images showed that it split from Antarctica's shattering Larsen C ice shelf behind a much larger, curved iceberg called A-68 and making its way north in clogged, ice-cold water.
The squareberg is an iceberg in tabular form, essentially a piece of flat ice that has been broken off the ice plate, instead of one of the more striking geometric, smaller peaks that sink the Titanic.
"The mountain traveled all the way to the north and through a narrow passage between the northern tip of the A-68 and a rocky rock near the ice shelf known as Bawden Ice Rise," NASA said in a statement. "NASA / UMBC glacologist Chris Shuman compares this zone with a nutcracker, A-68 has repeatedly smashed against the turnout and splintered pieces of ice into pure geometric shapes," added NASA, referring to Shuman, who is also at the university . from Maryland Baltimore County.
On this photo you can see how the mountain makes its way through dangerous water:
In the course of time it lost its beautiful square shape and it got more of a trapezoidal formation. NASA said it will probably continue to find its way north, where it will melt.
Originally published on Live Science.