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NASA photographs second rectangular iceberg


Posted on Thursday, 25 October, 2018 | Comment icon 44 comments

It turns out that tabular icebergs are not that uncommon. Image Credit: NASA / Jeremy Harbeck
Another intriguingly geometric iceberg has been spotted in Antarctica during an Operation IceBridge aerial survey.
The iceberg, just like the last one, was captured on camera off the Larsen C ice shelf as part of an ongoing project aimed at monitoring changes in the polar ice caps.

While this one is not quite as geometrically precise as the one that went viral last week, it does demonstrate that this particular phenomenon is actually quite common.

Icebergs of this type, which are known as tabular icebergs, typically split from the edges of ice sheets through a process that is not dissimilar to a fingernail growing too long and breaking off at the end.

A photograph of the previous iceberg can be viewed - here.

"I thought it was pretty interesting; I often see icebergs with relatively straight edges, but I've not really seen one before with two corners at such right angles like this one had," said IceBridge senior support scientist Jeremy Harbeck who photographed both icebergs.

Aerial footage taken during his recent flyover of the area can be viewed below.



Source: Evening Standard | Comments (44)

Tags: Iceberg

Recent comments on this story
Comment icon #35 Posted by freetoroam on 23 October, 2018, 18:23
It is not a fake, it is a rare but not unknown of tabular berg. See above post.
Comment icon #36 Posted by paperdyer on 24 October, 2018, 18:38
Then don't use any thermite!
Comment icon #37 Posted by Saru on 25 October, 2018, 15:29
Turns out there's more than one: https://www.standard.co.uk/news/world/nasa-spots-second-strikingly-rectangular-iceberg-in-antarctica-a3971131.html
Comment icon #38 Posted by devilmaycare on 26 October, 2018, 2:00
That's nothing. I was at Shoup park a long time ago with a friend and we were just hanging out. I looked up at the sky and there was a rectangular cloud about the same size as the iceberg above with no outline at all. Instead it was perfectly symmetrical round balls of cloud in a rectangular pattern. As I recall we both acted like that was normal lol.
Comment icon #39 Posted by Seti42 on 26 October, 2018, 4:51
Turns out, this is how aliens make 'snowmen'.
Comment icon #40 Posted by Vox on 26 October, 2018, 5:38
It looks like an i(ce)Pad.
Comment icon #41 Posted by taniwha on 26 October, 2018, 5:45
Is it really perfectly square???
Comment icon #42 Posted by ChrLzs on 26 October, 2018, 7:01
Nope. If you check out the videos (see link in Saru's post, there's a longer one out there too), you'll see that they have chosen the angle carefully. They are at best squar-ish at some of the corners, and only from some angles. Crystalline water (aka ice) does have some linear characteristics, so, especially if it is of even thickness and large (ie big areas of floating ice where the sea has gradually frozen), it will tend to break in straight-ish lines.
Comment icon #43 Posted by Myles on 26 October, 2018, 11:12
While I totally believe this to be natural, I can understand if someone would think that this was carved by man.
Comment icon #44 Posted by johncbdg on 26 October, 2018, 11:56
Not sure how many people had seen the video from 2008


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