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: Water discovery


A parasite was found in a Baltimore reservoir and vulnerable residents should take precautions

Wtop 30 Sep 2023
(CNN) — A microscopic parasite was detected in the Druid Lake Reservoir in Baltimore, and vulnerable residents are being told to take precautions when drinking water ... This microorganism discovery only affects the water systems in Baltimore City and Baltimore and Howard counties in Maryland ... Discovery Company....

Scientists Find Microplastics Inside Clouds

Futurism 30 Sep 2023
The team sampled water from mists shrouding the peaks of Mount Fuji and Mount Oyama, identifying nine different kinds of polymers and even one type of rubber anywhere from 7.1 to 94.6 micrometers in size ... The team used advanced imaging techniques and infrared spectrometry to make their discovery....

Fossil of giant trapdoor spider is four times larger than modern species

BGR 30 Sep 2023
So, even though it isn’t as large as some spiders, it’s still a huge discovery, as we don’t have much else to go off when it comes to these ancient spider fossils ... So, this discovery is significant for understanding their past. A paper on the discovery is available in the Zoological Journal of the Linnean Society....

Breakthrough Research Revolutionizes Hydrogen Generation

Oil Price 30 Sep 2023
The discovery, published in the journal Nature, centers on developing a highly efficient electrocatalyst that ......

Conn. trawl crew finds rare giant stingray, large predatory fish in Long Island Sound

The Day 30 Sep 2023
The first exotic discovery occurred when a Long Island Sound Trawl Survey crew monitoring the waters along the Connecticut coast trawled up a roughtail stingray that was over 6 feet long and 5 feet wide and was estimated to weigh about 400 pounds ... as waters continue to warm....

Bennington, Vt., reacts after tests detect PFAS in town wells

The Berkshire Eagle 30 Sep 2023
Pownal water study ... Hurd said the town’s response will be similar to efforts following the ChemFab contamination discovery seven years ago, when town water lines were extended to many properties with PFAS in wells to provide safe drinking water. The town’s water system sources have not been affected by PFAS....

East Bay firefighter with pending child porn case allegedly drowned in mysterious boating accident. The ...

The Mercury News 30 Sep 2023
He’d spent the last eight hours in the water, and he hadn’t seen Harris for seven of them, he told the homeowner ... Harris’ body was never recovered, but that’s hardly unusual in cases where people go missing in open water. Authorities were able to locate the boat, but with that discovery came another mystery....

West Scranton water main break repairs expected to wrap up overnight Thursday

The Scranton Times-Tribune 29 Sep 2023
The broken main closed school Thursday in West Scranton and discolored water in household taps ... Households throughout the valley experienced low water pressure and discoloration....

Apple Valley residents can shower again, but some restrictions remain

St George News 29 Sep 2023
GEORGEApple Valley residents who’ve been conserving water since the failure of their water system last week can finally take a shower as usual. But officials ask that they continue to conserve water outdoors ... This led to the discovery that the 1 million-gallon tank that serves the town was empty, leaving 170 homes without water....

Humans displaced, habitats disturbed - but Uganda pushes ahead with oil pipeline

The National 29 Sep 2023
“From the start, the government and companies have been telling communities the discovery of oil is going to make life better, you will get jobs, you will get hospitals, you will get water, you will get education,” he said ... said oil discoveries had the potential to improve lives....

eThekwini Water and Sanitation employee shot dead

Independent online (SA) 29 Sep 2023
“A passer-by contacted Reaction Unit South Africa (RUSA) at approximately 05.41 after they made the discovery.A 52-year-old man believed to be employed by the Department of Water and Sanitation at the eThekwini Municipality was shot in the head twice on Friday morning in Inanda, north of the CBD....

The immunocompromised, young kids and seniors advised to avoid drinking water in parts of Baltimore ...

The Virginian-Pilot 29 Sep 2023
The city was heavily criticized last year for what some called a slow response to and announcement of the discovery of E. coli bacteria in tap water in West Baltimore during routine testing ... is that we believe that our drinking water remains safe for the general population.” ... Water that was released through Druid Lake....