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117,737 followers   •   1,116 following   •   United States   •   http://ice.nasa.gov/

Exploring Earth's sea ice, land ice, snow and permafrost.

Latest Scoops

Roses are red #ICESat2
's laser green
Check out the cool
Earth features we've seen
#HappyValentinesDay
https://t.co/4TmQf31bfk
Roses are red
#ICESat2's up in space
With lasers to show you
The height of this place

#ScienceValentines
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The crater isn’t confirmed as a meteor impact yet – that takes further research – but it looks very likely that it is one. This discovery shows how @NASA ’s ongoing study of our home planet helps us understand how it interacts with the space around us. https://t.co/lGL9yMPHx1
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The verdict? It’s possible that two craters 🕳🕳 formed at different times ⏰ in Earth’s history. All it took were data from NASA satellites 🛰 and airborne missions ✈️ like Operation #IceBridge to reveal where the craters were hiding.
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Recent @NASALADEE research used a new analysis of lunar impact 🌔☄️ rates to help determine how frequently Earth 🌏 experiences large impacts.https://t.co/XXmqWKnMqt
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Impacts this large are rare, occurring once every 2 million years. How likely is it for two large craters to be so close together? To answer that question, @NASAEarth scientists looked to a body with almost no erosion, where impact craters are much better preserved: the Moon 🌕.
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The two Greenland craters are only about 114 miles 📏 apart, but at first glance they don’t seem to have formed at the same time. The newly discovered crater is more eroded and the ice ❄️ above it is thicker and older than over the Hiawatha crater.
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Finding new impact craters on Earth can be hard. Water 💧 and weather 🌨 erode the landscape relatively quickly, geologically speaking. Scientists were surprised to find evidence of craters under ice sheets, which generally grind the land down faster than we can locate craters.
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This isn’t the first time scientists have used @NASA data 📈 to identify an impact crater 🕳 under Earth’s ice sheets. This past November, a team announced discovery of a different crater under Greenland’s Hiawatha Glacier. https://t.co/S9aReB81bP
A possible crater 🕳 caused by a meteor impact ☄️ lies buried beneath more than a mile of ice ❄️ in Greenland. It’s more than 22 miles 📏 wide, which would make it the 22nd largest impact crater ever found on Earth.
https://t.co/5F2uZbEPl1
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The Most Relevant

From yesterday's #IceBridge flight: A tabular iceberg can be seen on the right, floating among sea ice just off of the Larsen C ice shelf. The iceberg's sharp angles and flat surface indicate that it probably recently calved from the ice shelf.
Operation #IceBridge ✈️ helped pull back Greenland’s curtain of ice ❄️to identify an impact crater from a meteor thousands of years in the past.
https://t.co/XkojxQO1Fi
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An iceberg about the size of Delaware has split off from Antarctica - scientists wonder: what happens next? https://t.co/atdtCKtUyy
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Wow, it’s been amazing to see what a splash our photo of a tabular Antarctic iceberg, by #IceBridge ’s Jeremy Harbeck, has made. Fly toward the berg with 's DC-8 forward camera. More: https://t.co/kADuUL455F
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2018 Arctic sea ice minimum extent tied for sixth lowest in the nearly 40-year satellite record https://t.co/EkyURWJClG
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Enjoy this photo of the extended sunrise near the North Pole, courtesy of today's #IceBridge flight.
We're ready for launch! Can't wait to launch into orbit to measure our planet's ice!
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From #IceBridge Alaska: A higher altitude view of Icy Bay, in the Wrangell-Saint Elias Wilderness. Just a century ago, this body of water was covered in ice.
2017 Arctic sea ice minimum extent is 8th lowest on record. Global monthly sea ice extents are at record lows https://t.co/8CizmzJXs8
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Total(1) => 0.097308158874512 f_f_QM(2) => 0.077002048492432 indS(2) => 0.0068860054016113 indM(2) => 0.066498994827271 indM_1(2) => 0.0036940574645996 indM_2(2) => 0.00082087516784668 indM_4(2) => 0.0060069561004639 indM_5(2) => 0.014461994171143 indM_6(2) => 0.001655101776123 indM_7(2) => 0.010197162628174 indM_8(2) => 0.004533052444458 indM_9(2) => 0.013046979904175 indM_10(2) => 0.01171088218689 f_f_pTL(2) => 0.0024778842926025 f_f_dT(20) => 0.0023272037506104