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


Researchers studying 'doomsday glacier' make worrying discovery

The Hill 21 May 2024
“The water is then squeezed enough to jack up a column of more than half a mile of ice.” ... Dow said it's still not clear how much time is left before the ocean water's damage to the glacier is irreversible, but she is hopeful the discovery will lead to more accurate models....

Living with contaminated water in a small Maine town

Bangor Daily News 21 May 2024
As the country tightens drinking water standards years after the discovery of widespread PFAS contamination, many residents in Fairfield will continue to question what they can trust and what basics of life — a hot shower or cold glass of water — they will ever be able to enjoy again ... The EPA does not require bottled water to be tested for PFAS....

Thousands of homes are banned from drinking tap water for a sixth day amid parasite ...

The Daily Mail 20 May 2024
Thousands of homes have been banned from drinking their tap water for a sixth day amid the South West Water (SWW) parasite scandal ... A South West Water free water station. Workers are continuing to supply residents with bottled water after a parasite infected the water supply ... The water companies have gamed the system to their benefit....

‘How do you get hypothermia in a prison?’ Records show hospitalizations among Virginia inmates

The Associated Press 19 May 2024
They also show medical providers expressed concern about temperatures and one inmate described ice forming on toilet water....

Mother who exposed South West Water parasite scandal says firm

The Daily Mail 19 May 2024
A mother who exposed the South West Water parasite scandal has challenged the firm to provide more answers after a grovelling video apology from its £550,000-salary boss which barred people from replying ... South West Water chief executive Susan Davey has issued a video apology online ... The £4m fat cat water boss giving you diarrhoea....

This lesser-known Indian tree not only produces oxygen but also water

The Times of India 18 May 2024
A remarkable discovery in Andhra Pradesh unveils the Indian laurel tree's unique ability to ......

Volcano Watch: A fresh look at Kilauea’s 1924 explosive deposits

West Hawaii Today 18 May 2024
This week, we dig a little deeper and share new discoveries we are making by examining the ash deposited during these events ... This finding supports the classic interpretation that the 1924 eruptions were driven by water-rock interactions (called phreatic explosions)....

Some of the Catholic Church’s best-known reports of apparitions of Mary

The Los Angeles Times 18 May 2024
Our Lady of Guadalupe, Mexico. An Indigenous man named Juan Diego reported several apparitions of the Virgin Mary in 1531 ... Lourdes, France. July 16 marks the anniversary of purported visions of Mary in 1858 by a young girl, Bernadette Soubirous, and the discovery of allegedly healing spring waters in southern France near the Pyrenees. Fatima, Portugal....

English fishing village told to boil water after outbreak from parasite sickens over 45 people

Newsday 17 May 2024
Clean water advocates have blamed the problems on Britain’s privatization of the water system in 1989 ... Around 16,000 households and businesses in the Brixham area of Devon have been told not to use their tap water for drinking without boiling and cooling it first, following the discovery of small traces of a parasite in the local water network....

The Multibillion-Dollar Fight for the NBA

Vanity Fair 17 May 2024
Discovery is set to expire at the end of next season, and ......

Some of the Catholic Church's best-known approved, and not approved, reports of apparitions of Mary

Newsday 17 May 2024
Previous approved apparitions have turned these sites into major pilgrimage destinations, drawing millions of people to them each year. ... — Lourdes, France. July 16 marks the anniversary of purported visions of Mary in 1858 by a young girl, Bernadette Soubirous, and the discovery of allegedly healing spring waters in southern France near the Pyrenees....

Climate change brings rising Lake Michigan water levels. Art Museum, Summerfest, others respond

Milwaukee Journal Sentinel 16 May 2024
Discovery World installed flood panels "that effectively protected our lowest point from water intrusion" after high lake levels in 2018, said Carl Schoettel, chief operations officer ... Also, Discovery World in 2020 deployed a temporary rubber water barrier to prevent damage during a winter storm that struck the lakefront....

MDI lab studying how PFAS spreads from rural schools to homes

Bangor Daily News 16 May 2024
... water of some homes around Mount Desert Island High School ... Another outcome of that discovery was additional testing that found more PFAS contamination in the groundwater, surface water and wastewater around the school, as well as in the drinking water of some nearby homes....