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The Salty Truth About Ceres' Mysterious Bright Spots | Space

The Salty Truth About Ceres' Mysterious Bright Spots | Space | 21st Century Innovative Technologies and Developments as also discoveries, curiosity ( insolite)... | Scoop.it
New insights gleaned from data provided by NASA's Dawn spacecraft may have solved the mystery of Ceres' enigmatic bright spots.


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http://www.scoop.it/t/21st-century-innovative-technologies-and-developments/?tag=CERES


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New insights gleaned from data provided by NASA's Dawn spacecraft may have solved the mystery of Ceres' enigmatic bright spots.


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http://www.scoop.it/t/21st-century-innovative-technologies-and-developments/?tag=CERES



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Bilder von Zwergplanet Ceres: Immer näher, immer rätselhafter

Bilder von Zwergplanet Ceres: Immer näher, immer rätselhafter | 21st Century Innovative Technologies and Developments as also discoveries, curiosity ( insolite)... | Scoop.it
Die Raumsonde "Dawn" funkt Bilder des Zwergplaneten Ceres zur Erde. Die Aufnahmen zeigen die rätselhaften Flecken auf der Oberfläche des Planeten in immer höherer Auflösung - können das Geheimnis aber nicht lüften.


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http://www.scoop.it/t/21st-century-innovative-technologies-and-developments/?tag=Space


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Die Raumsonde "Dawn" funkt Bilder des Zwergplaneten Ceres zur Erde. Die Aufnahmen zeigen die rätselhaften Flecken auf der Oberfläche des Planeten in immer höherer Auflösung - können das Geheimnis aber nicht lüften.


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http://www.scoop.it/t/21st-century-innovative-technologies-and-developments/?tag=Space



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GPS-Messungen: Der Erde wächst eine Beule

GPS-Messungen: Der Erde wächst eine Beule | 21st Century Innovative Technologies and Developments as also discoveries, curiosity ( insolite)... | Scoop.it
GPS-Daten aus der Westantarktis zeigen Erstaunliches: Das Land hebt sich rapide, unserem Planeten wächst eine Beule - die verändert sogar die Erddrehung und macht die Tage länger.


Offenbar liege unter dem Eis eine vulkanisch aktive Zone, ein sogenanntes Backarc-Becken - solche Regionen entstehen hinter der Kollisionsfront zweier Erdplatten: Ein Plattencrash setzt die Erdkruste unter Spannung. Wo sie aufreißt, drängen die zähflüssigen Eingeweide der Erde nach oben. Schließlich läuft Magma aus, wie Blut aus einer Wunde.

Gust MEES's insight:

Offenbar liege unter dem Eis eine vulkanisch aktive Zone, ein sogenanntes Backarc-Becken - solche Regionen entstehen hinter der Kollisionsfront zweier Erdplatten: Ein Plattencrash setzt die Erdkruste unter Spannung. Wo sie aufreißt, drängen die zähflüssigen Eingeweide der Erde nach oben. Schließlich läuft Magma aus, wie Blut aus einer Wunde.

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NASA on Alert as Giant Iceberg Breaks Off into Antarctica

NASA on Alert as Giant Iceberg Breaks Off into Antarctica | 21st Century Innovative Technologies and Developments as also discoveries, curiosity ( insolite)... | Scoop.it
Its feared that the mammoth iceberg could contribute to rising sea levels.
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Its feared that the mammoth iceberg could contribute to rising sea levels.

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Detecting Water Vapor On A 'Hot Jupiter' Around Tau Bootis

Detecting Water Vapor On A 'Hot Jupiter' Around Tau Bootis | 21st Century Innovative Technologies and Developments as also discoveries, curiosity ( insolite)... | Scoop.it
For the first time, a team of American astronomers has used near-infrared spectroscopy to directly detect water vapor in the atmosphere of a gas giant planet in close orbit around tau Bootis --- a bright star in Bootes that may have even helped Odysseus home from Troy. But not even Odysseus [...]


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Vast liquid ocean encircles Enceladus, Saturn’s sixth moon

Vast liquid ocean encircles Enceladus, Saturn’s sixth moon | 21st Century Innovative Technologies and Developments as also discoveries, curiosity ( insolite)... | Scoop.it
Scientists have confirmed that Enceladus, the icy moon of Saturn, harbors a vast subsurface ocean that wraps around the entire core.
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Scientists have confirmed that Enceladus, the icy moon of Saturn, harbors a vast subsurface ocean that wraps around the entire core.


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NASA: West Antarctic Melt Rate Has Tripled

NASA: West Antarctic Melt Rate Has Tripled | 21st Century Innovative Technologies and Developments as also discoveries, curiosity ( insolite)... | Scoop.it

A comprehensive, 21-year analysis of the fastest-melting region of Antarctica has found that the melt rate of glaciers there has tripled during the last decade. 


The glaciers in the Amundsen Sea Embayment in West Antarctica are hemorrhaging ice faster than any other part of Antarctica and are the most significant Antarctic contributors to sea level rise. This study by scientists at the University of California, Irvine (UCI), and NASA is the first to evaluate and reconcile observations from four different measurement techniques to produce an authoritative estimate of the amount and the rate of loss over the last two decades.


"The mass loss of these glaciers is increasing at an amazing rate," said scientist Isabella Velicogna, jointly of UCI and NASA's Jet Propulsion Laboratory, Pasadena, California. Velicogna is a coauthor of a paper on the results, which has been accepted for publication in the journal Geophysical Research Letters.


Lead author Tyler Sutterley, a doctoral candidate at UCI, and his team did the analysis to verify that the melting in this part of Antarctica is shifting into high gear. "Previous studies had suggested that this region is starting to change very dramatically since the 1990s, and we wanted to see how all the different techniques compared," Sutterley said. "The remarkable agreement among the techniques gave us confidence that we are getting this right."


The researchers reconciled measurements of the mass balance of glaciers flowing into the Amundsen Sea Embayment. Mass balance is a measure of how much ice the glaciers gain and lose over time from accumulating or melting snow, discharges of ice as icebergs, and other causes. Measurements from all four techniques were available from 2003 to 2009. Combined, the four data sets span the years 1992 to 2013.


Via Dr. Stefan Gruenwald
Gust MEES's insight:

A comprehensive, 21-year analysis of the fastest-melting region of Antarctica has found that the melt rate of glaciers there has tripled during the last decade. 


The glaciers in the Amundsen Sea Embayment in West Antarctica are hemorrhaging ice faster than any other part of Antarctica and are the most significant Antarctic contributors to sea level rise. This study by scientists at the University of California, Irvine (UCI), and NASA is the first to evaluate and reconcile observations from four different measurement techniques to produce an authoritative estimate of the amount and the rate of loss over the last two decades.


"The mass loss of these glaciers is increasing at an amazing rate," said scientist Isabella Velicogna, jointly of UCI and NASA's Jet Propulsion Laboratory, Pasadena, California. Velicogna is a coauthor of a paper on the results, which has been accepted for publication in the journal Geophysical Research Letters.


Lead author Tyler Sutterley, a doctoral candidate at UCI, and his team did the analysis to verify that the melting in this part of Antarctica is shifting into high gear. "Previous studies had suggested that this region is starting to change very dramatically since the 1990s, and we wanted to see how all the different techniques compared," Sutterley said. "The remarkable agreement among the techniques gave us confidence that we are getting this right."


The researchers reconciled measurements of the mass balance of glaciers flowing into the Amundsen Sea Embayment. Mass balance is a measure of how much ice the glaciers gain and lose over time from accumulating or melting snow, discharges of ice as icebergs, and other causes. Measurements from all four techniques were available from 2003 to 2009. Combined, the four data sets span the years 1992 to 2013.

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La fonte de glaciers de l'Ouest de l'Antarctique « a atteint un point de non-retour »

La fonte de glaciers de l'Ouest de l'Antarctique « a atteint un point de non-retour » | 21st Century Innovative Technologies and Developments as also discoveries, curiosity ( insolite)... | Scoop.it
Deux études affirment que la fonte des grands glaciers de la région, qui contiennent assez d'eau pour faire monter les océans d'un mètre, s'accélère.


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http://www.scoop.it/t/21st-century-innovative-technologies-and-developments/?tag=Antarctic


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This Is How Your Plastic Bag Ends Up In Massive Ocean Garbage Patches [Infographic]

This Is How Your Plastic Bag Ends Up In Massive Ocean Garbage Patches [Infographic] | 21st Century Innovative Technologies and Developments as also discoveries, curiosity ( insolite)... | Scoop.it
Ever heard of the Pacific garbage patch? It's one of several swirling trash zones in our oceans, and it's where a lot of our plastic litter ends up. While these debris patches aren't visible piles of floating trash in the water, the reality of what t...
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