NASA unveils probe bound for Jupiter's possibly life-sustaining moon
US space scientists on Thursday unveiled the interplanetary probe NASA plans to send to one of Jupiter's icy moons as part of humanity's hunt for extra-terrestrial life.
US space scientists on Thursday unveiled the interplanetary probe NASA plans to send to one of Jupiter's icy moons as part of humanity's hunt for extra-terrestrial life.
Space Exploration
Apr 12, 2024
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485
A new study published in Nature Communications has revealed that the interplay between meandering ocean currents and the ocean floor induces upwelling velocity, transporting warm water to shallower depths. This mechanism ...
Earth Sciences
Apr 11, 2024
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1664
ESA's Mars Express has snapped the telltale traces of "spiders" scattered across the southern polar region of Mars.
Planetary Sciences
Apr 24, 2024
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57
In Antarctica, heavy glaciers are always on the move. Conveyor belts of ice, known as ice streams, are the corridors of faster flow that carry most of the vast glaciers' ice and sediment debris out toward the ocean.
Earth Sciences
Mar 29, 2024
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265
New research has uncovered a feedback loop that may be accelerating the melting of the floating portions of the West Antarctic Ice Sheet, pushing up global sea levels.
Earth Sciences
Apr 22, 2024
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As snow falls on Antarctica, layers build up and turn to ice. Over time, this compressed snow has become a continent-sized glacier, or ice sheet. It's enormous—almost double the size of Australia and far larger than the ...
Earth Sciences
Apr 9, 2024
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666
By analyzing DNA and studying old animal bones, researchers have been able to reconstruct the animal diversity from a cave in Nordland, Norway.
Paleontology & Fossils
Apr 5, 2024
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83
Sea ice at both the top and bottom of the planet continued its decline in 2024. In the waters around Antarctica, ice coverage shrank to near-historic lows for the third year in a row. The recurring loss hints at a long-term ...
Earth Sciences
Mar 25, 2024
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A new study is shaking up what scientists thought they knew about distant objects in the far reaches of the solar system, starting with an object called the space snowman.
Planetary Sciences
Mar 31, 2024
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In 1897, the former whaling ship RV Belgica left Antwerp in Belgium and set sail due south. It was the first voyage of what would become known as the Heroic Age of Antarctic exploration. It did not go to plan.
Earth Sciences
Apr 10, 2024
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9
Ice is a solid phase, usually crystalline, of a non-metallic substance that is liquid or gas at room temperature, such as carbon dioxide ice (dry ice), ammonia ice, or methane ice. However, the predominant use of the term ice is for water ice, technically restricted to one of the 15 known crystalline phases of water. In non-scientific contexts, the term usually means ice Ih, which is known to be the most abundant of these solid phases. It can appear transparent or opaque bluish-white colour, depending on the presence of impurities or air inclusions. The addition of other materials such as soil may further alter the appearance.
The most common phase transition to ice Ih occurs when liquid water is cooled below 0°C (273.15K, 32°F) at standard atmospheric pressure. It can also deposit from vapour with no intervening liquid phase, such as in the formation of frost.
Ice appears in nature in forms as varied as snowflakes, hail, icicles, glaciers, pack ice, and entire polar ice caps. It is an important component of the global climate, and plays an important role of the water cycle. Furthermore, ice has numerous cultural applications, from ice cooling of drinks to winter sports and the art of (ice sculpting).
The word is derived from Old English ís, which in turn stems from Proto-Germanic *isaz.
This text uses material from Wikipedia, licensed under CC BY-SA