Earth changes

The Antarctic Sun: News about Antarctica

Photo Credit: John Catto/Alpenglow Pictures Storms in October brought high winds that caused blowing snow at McMurdo Station more often than not through most of the month. The bad weather may have had a relationship with the phenomenon known as the El Niño and Southern Oscillation. Blustery, baleful weather at McMurdo impedes progress through much of October By Peter ...

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The Antarctic Sun: News about Antarctica

Photo Courtesy: Alex Eilers Members of Jenn Burns’ field team, including Alex Eilers at right, unfurl a string of flags in front of Mount Erebus while working on sea ice. The flags were decorated by students in Tennessee. Eilers is leading outreach efforts to interest students in science. Educator teams up with seal biologists ...

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The Antarctic Sun: News about Antarctica

Photo Credit: Peter Rejcek Mountaineers Ned Corkran and John Loomis examine a crack near an iceberg that is frozen in the sea ice close to Cape Evans, Ross Island. Travel on sea ice for research and operational needs requires constant monitoring to ensure safety. This crack is wide enough for vehicles to require a bridge ...

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Sun Sends an Early Earth Day Greeting : Image of the Day

We know the Sun is the source and driver of so many things in our earthly days: providing light and heat that energize our plants, our solar panels, and our weather, among other things. But its influence stretches over the horizon into our nights, as well. As our nearest star, the Sun bathes Earth in a steady stream of energetic ...

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The Antarctic Sun: News about Antarctica

Photo by Andrew Slater Scientist Lars Kalnajs works on aerosol instruments in Hut 17 on the sea ice. Researchers are interested in characterizing the natural aerosols carried by the winds that sweep across Antarctica to learn how they effect and are affected by snow and other factors. Research on the transport of natural aerosols ...

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The Antarctic Sun: News about Antarctica

Photo Credit: Peter Rejcek Diver Rob Robbins, left, prepares to lead Lily Simonson on a dive into McMurdo Sound. Robbins first came to Antarctica in 1979 and has been back every year since – one of four people still working in the U.S. Antarctic Program 35 years later. Four USARP — er, USAP — ...

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The Antarctic Sun: News about Antarctica

Scientists investigate how Weddell seals navigate under sea ice By Peter Rejcek, Antarctic Sun Editor Posted December 22, 2014 Weddell seals spend much of their lives swimming and hunting for prey underneath Antarctic sea ice. These marine mammals – capable of diving down hundreds of meters in the frigid waters of the Southern Ocean for nearly an hour at a ...

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The Antarctic Sun: News about Antarctica

Photo Credit: Peter Rejcek MacOps operator Alyssa Hartson handles radio traffic while McMurdo Station communications supervisor Shelly Campbell and operator Sage Asher discuss work schedules. MacOps monitors all field party communications. McMurdo Station communications department serves as nerve center for fieldwork  By Peter Rejcek, Antarctic Sun Editor Posted December 19, 2014 It’s mid-morning on a ...

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A Clear View of Scottish Highlands : Image of the Day

Looking out from a window on the International Space Station, an astronaut captured this rare photograph of the Scottish Highlands. Cloud-covered skies are common for the region and typically prevent landscape photography from space, especially during the winter months (when this image was taken). The topography of the Scottish Highlands is the result of geological processes spanning billions of years. ...

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The Antarctic Sun: News about Antarctica

Photo Credit: Dale Andersen Cyanobacteria form thick mats in the bottom of Lake Joyce that feature webbed pinnacles called microbialites, partly composed of calcium carbonate, the same mineral that makes up coral reefs. The structures are similar to those built by organisms in Earth’s early history. Bacterial mats in Dry Valleys lake sheds light ...

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