Joyeux Noël // Merry Christmas 

OMG! Ice is Melting from Below

Oceans Melting Greenland (OMG) scientists are heading into the field this week to better understand how seawater is melting Greenland’s ice from below. (Yes, those black specks are people next to an iceberg.) While NASA is studying ocean properties (things like temperature, salinity and currents), other researchers are eager to incorporate our data into their work. In fact, University of Washington scientists are using OMG data to study narwhals – smallish whales with long tusks – otherwise known as the “unicorns of the sea.”

 Our researchers are also in the field right now studying how Alaska’s ice is changing. Operation IceBridge, our longest airborne campaign, is using science instruments on airplanes to study and measure the ice below.

What happens in the Arctic doesn’t stay in the Arctic (or the Antarctic, really). In a warming world, the greatest changes are seen in the coldest places. Earth’s cryosphere – its ice sheets, sea ice, glaciers, permafrost and snow cover – acts as our planet’s thermostat and deep freeze, regulating temperatures and storing most of our freshwater. Next month, we’re launching ICESat-2, our latest satellite to study Earth’s ice!

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.

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Android users: Go forth and GIF 

Your Tumblr app makes GIFs now, just like the iOS app does.

Any video on your phone can be giffed. You’ve probably already shot tons of them, and they probably contain tons of giffable moments. Just:

Open a new photo post. 

Pick a video. 

Thwack!—it’s a GIF.

Speed it up. Slow it down. Make it eternally loop, or fool it into rebounding back and forth across time. Have fun figuring out the things you can do with your GIF.

Some additional tips for your GIF-making pleasure:

The shorter your GIF is, the better it’ll look. 

Speeding up a slow-mo GIF to 3x or 4x makes for a crazy-smooth normal-speed GIF.

Tap the rebound once to make your GIF go back and forth, twice to make it run in reverse. 

Sometimes life is too complicated for just one GIF. Make a photoset.

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