Ice is water frozen into a solid state. Depending on the presence of impurities such as particles of soil or bubbles of air, it can appear transparent or a more or less opaque bluish-white color.

In the Solar System, ice is abundant and occurs naturally from as close to the Sun as Mercury to as far as the Oort cloud. Beyond the Solar System, it occurs as interstellar ice. It is abundant on Earth's surface  particularly in the polar regions and above the snow line  and, as a common form of precipitation and deposition, plays a key role in Earth's water cycle and climate. It falls as snowflakes and hail or occurs as frost, icicles or ice spikes.

Ice molecules can exhibit up to sixteen different phases (packing geometries) that depend on temperature and pressure. When water is cooled rapidly (quenching), up to three different types of amorphous ice can form depending on the history of its pressure and temperature. When cooled slowly correlated proton tunneling occurs below 20 K giving rise to macroscopic quantum phenomena. Virtually all the ice on Earth's surface and in its atmosphere is of a hexagonal crystalline structure denoted as ice Ih (spoken as "ice one h") with minute traces of cubic ice denoted as ice Ic. 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 may also be deposited directly by water vapor, as happens in the formation of frost. The transition from ice to water is melting and from ice directly to water vapor is sublimation.

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Latest News for: Discovery water


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New Atlas 03 Feb 2023
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Roman sewer works reveal statue of emperor posing as Hercules 

Hong Kong Standard 03 Feb 2023
The statue, which consists of several broken pieces, and which suffered some accidental damage during its chance discovery, is currently being cleaned and restored. . Reuters saw it while stored in an ancient Roman water reservoir now repurposed as a warehouse....

With frigid innovation, scientists make a new form of ice

Reuters 03 Feb 2023
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Scientists Find New Evidence of Hidden Ocean World in Our Solar System

Futurism 03 Feb 2023
A random Saturnian moon may seem like a strange place for habitation, but with recent forays in habitable exoplanet research centering on bodies of water as homes for potential life, the discovery of an ocean on that distant celestial body within our Solar System could be massive....

Courthouse garage construction behind schedule; completion expected in late April

Pittsburgh Tribune Review 03 Feb 2023
Issues such as water infiltration into the construction site, along with the discovery of bedrock, prompted additional design work and a requirement that larger support columns be erected to support the rebuilt structure, all leading to six months of additional work....

Scientists developed new ice form with similar density to liquid water

Interesting Engineering 03 Feb 2023
“Our discovery of MDA raises many questions on the very nature of liquid water." ....

Zhengyang Bridge site added to Beijing's key cultural relics protection list 03 Feb 2023
It was built to guard the southern entry to the Inner City ... In 2021, the Beijing Municipal Cultural Heritage Bureau launched an archaeological excavation project at the site and unearthed a stone water statue. The crucial discovery helped archeologists better understand the location and shape of the site ... ....

Disney’s new ‘World of Color — One’ is unexpected and different — and that’s the goal

LA Daily News 03 Feb 2023
Scene from World of Color – ONE, the new nighttime water show at Disney California Adventure in Anaheim, CA, on Tuesday, January 31, 2023 ... The new water show’s theme of independence and self discovery helped narrow the available catalog down to movies where a single character made a decisive choice that had a measurable impact....

Our View: On active, vocal youths and going electric

Index-Journal 03 Feb 2023
Another committee, more meetings and then what? The skepticism would be understandable ... They have not shaped any city policy ... We haven’t asked, but you might know the City of Greenwood has always been generous about providing water and electricity to the barbecue competition teams that descend on the city each year for our Festival of Discovery ... .......

Discovery of new ice may change our understanding of water

Phys Dot Org 02 Feb 2023
student in the ICE (interfaces, catalytic & environmental) lab at UCL and the University of Cambridge, said, "Our discovery of MDA raises many questions on the nature of liquid water and so understanding MDA's precise atomic structure is very important." ... Discovery of new ice may ......

Volunteers find high road salt levels in Michigan waterways

The Monroe News 02 Feb 2023
Road salt contains chloride, a toxic compound that dissolves in water ... The Metro Detroit area has a lot of paved surfaces that increase water runoff, Briggs said ... Salt Watch has a number of partner organizations in the state, including the Outdoor Discovery Center ... “It could cause something like the Flint water crisis.”....

An illuminated water droplet creates an 'optical atom'

Phys Dot Org 31 Jan 2023
Shining light on a water droplet creates effects analogous to what happens in an atom ... The same effect is achieved when a beam of light is shone into a water droplet ... This discovery can be applied to liquids other than water and may be useful when studying aerosol droplets in inhalers used for medication, for example....

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