Iceberg the size of the Badlands!

Categories: Antarctic News, Antarctic Science, Antarctica | Kathleen M. Heideman | February 26, 2010

Two Huge Icebergs Let Loose Off Antarctica’s Coast : NPR.  The result 0f their collision is a new iceberg that’s approximately the size of Badlands National Park.

‘Living beach ball’ is giant single-cell life-form!

Categories: Antarctic Science, Evidence, Science + Research | Kathleen M. Heideman | February 3, 2010

Amazing science news of the day:  this amazing organism — Syringammina fragilissima — has been determined to be a gargantuan relative of the foraminiferans.  It is a single celled organism, encased in a fragile ball of sand-tubes!

There are still many mysteries inherent in how a single-celled form of life can demonstrate such creative, self-organizing properties.  As the article from New Scientist explains, we know almost nothing about it yet.  We don’t know how it eats, how it excretes waste, or how it reproduces.  The Syringammina appears to go through periods of building and resting and — like foraminifera — it secretes a form of glue, and gathers sediments to itself, to create the container-shelter.   Forams actually build structures with distinct/predictable shapes using different component grains, depending on their species!  I find the parallels strikingly similar (only on a much larger scale) with the foraminifera research of Dr. Sam Bowser, whose under-ice diving, foram-gathering and field-research camp I was privileged to observe first-hand at New Harbor, Antarctica.  Note:  Bowser’s extensive research on forams, including underwater footage shot at the New Harbor field camp, was featured in Werner Herzog’s recent movie Encounters at the End of the World (for anyone who wants to learn more about the odd world of forams).

I predict it’s just a matter of time until they figure out how to write poetry…

Zoologger: ‘Living beach ball’ is giant single cell – life – 03 February 2010 – New Scientist.

Ice Bridge

Categories: Antarctic Field Notes, Antarctic News, Antarctic Science, Antarctica, GPS/GIS | Kathleen M. Heideman | November 1, 2009

Bi-Polar Photographer Stuart Klipper sent me this NPR story about Ice Bridge, NASA’s new polar imaging project, with planes now taking the place of a dying satellite (Stuart would like to be taking photographs from the flight deck of those planes). Listen to NPR: NASA Launches Mission To Track Polar Ice By Plane (by Jon Hamilton)

The article was fascinating to me for another reason:  the scientist quoted in the story is the same Thomas P. Wagner who was such a terrific liaison for me while I was in Antarctica!  At that time, he was working for the National Science Foundation (Earth Sciences division) — but it seems he has since made the jump to NASA!  Wow.  There were NASA scientists sharing our lab at McMurdo that season, working on core-sampling equipment. Perhaps he was being recruited?  Great guy — wonderful to work with. Here’s a NASA video featuring Wagner:

“NASA climate scientist Tom Wagner provides a look at the state of Arctic sea ice in 2009 and discusses NASA’s role in monitoring the cryosphere.”

Wagner and I, along with the TAMDEF (TransAntarctic Mountains Deformation) researchers, flew down to reposition a GPS device on Deverall Island, the southern-most (icebound) island in Antarctica. Here is a panoramic photo taken by a researcher at Deverall, which includes one of their GPS units, if you scroll all the way to the right edge of the image. And here is are my own photos from that trip: The Scientific Method: Deverall Island