ice

IceGoat: The next generation

One source of young talent to carry the military’s proposals and technologies into the future will come from the U.S. Naval Academy in Annapolis, Md., where Lt. Cmdr. John Woods, an oceanography professor, specializes in sea-ice studies. Woods recently launched a polar science program, supported by the academy’s STEM Office, which he hopes will convey to students an understanding of sea-ice dynamics — how ice is thinning and what’s causing it to thin.

16 Apr 2012

CryoScoop: Two-decade Antarctic drilling effort complete

Valery Lukin, director of the Russian Antarctic program, confirmed today that a team of Russian scientists has completed an Antarctic drilling project two decades in the making, according to the Associated Press. The team finished drilling on Feb. 5 through 3.25 kilometers of ice to reach Lake Vostok, the largest subglacial lake in the world.

07 Feb 2012

Unearthing Antarctica's mysterious mountains

In 1958, geologists discovered a mountain range buried more than a kilometer beneath the East Antarctica Ice Sheet. For more than half a century, the origins of the Gamburtsev Subglacial Mountains have proven to be a geological puzzle, but a new study may have finally solved the enigma, and simultaneously given geologists a new understanding of mountain-building processes.

07 Feb 2012

CryoScoop: Massive rift portends Antarctic berg

Researchers flying over West Antarctica last month were at the right place at the right time, spotting an actively growing rift that they expect will spawn an iceberg about 10 times the size of Manhattan.

04 Nov 2011

A Martian icecap, now in 3-D

Move over, James Cameron. Researchers have created the first 3-D subsurface pictures of Mars’ northern icecap — and they’re using these images to solve a 40-year-old Martian puzzle.

The puzzle centered around Chasma Boreale, an ice canyon in the northern icecap that is comparable in size to the Grand Canyon, and the spiral troughs that extend in a pinwheel-fashion from the icecap’s center. How each of these features formed has long mystified researchers.

27 May 2010

Fire and ice produced Eyjafjalla's explosion

When an Icelandic volcano with a nearly unpronounceable name erupted after 200 years of quiet in March, it was little more than a curiosity. But when it erupted again in April — this time spewing huge clouds of ash as high as 11 kilometers into the stratosphere, quickly choking airways across Europe and costing airlines billions of dollars — it captured the world’s attention. As the ashfall decreased and airlines resumed normal routes this week, the headlines began to fade.

23 Apr 2010

Designing Snowflakes

It's easy to forget that powerful snowstorms are made of tiny, delicate ice crystals we call snowflakes. Some snowflakes take a familiar six-sided form. Others are more fantastic. Either way, snowflakes can astound with their intricate beauty.

05 Mar 2010

NASA's LCROSS crashes on the moon

Blogging on EARTH

Usually, NASA hopes its space probes land safely at their destinations. This morning, the agency was planning for a big explosion on the moon — all in the hopes of confirming the presence of water on our nearest neighbor.

09 Oct 2009

Glaciers, not eruption: False alarm volcano mystery solved

When deep, long-period earthquakes started shaking the area around the Katla volcano on the southern tip of Iceland in 2001, officials feared it was a sign of an imminent eruption, as such quakes can be. So they were surprised when nothing happened. A new study identifies the source of the spurious signals: collapsing glaciers around the volcano, not the volcano itself. The finding may help researchers more accurately monitor other glacier-covered volcanoes.

07 Oct 2009

Mars' ice is pure, not dirty

Blogging on EARTH

25 Sep 2009

Moon much wetter than thought

The moon isn’t quite the bone-dry place scientists once thought; instead, its surface is covered in water, according to a landmark finding announced by scientists at NASA today.

24 Sep 2009

Glacier moves in fits and starts

The Whillans Ice Stream — an Antarctic glacier that covers an area slightly smaller than the state of New Jersey — flows from the interior of the continent to the ocean at a rate of about one meter per day. That’s not unusual for a large glacier, but how it covers that distance is surprising. Instead of inching along at a steady pace as most glaciers do, the Whillans Ice Stream jerks forward just twice a day, each time sending out seismic waves equivalent to a major earthquake.

28 Aug 2008

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