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


We the Animals review – one of the discoveries of the year

The Observer 16 Jun 2019
It also delicately dances around the black and white of an abusive relationship ... The circumstances are undeniably tough ... The score, by Nick Zammuto, is notable too, with its aqueous quality; it’s a bubbling, rippling riposte to the repeated visual motif of characters submerged, flailing, in lake water. One of the discoveries of the year so far ... ....

Author to visit Midland library June 20

Midland Daily News 15 Jun 2019
Flint's Water and the American Urban Tragedy." ... people and events that led up to the Flint water crisis ... Flint's Water and the American Urban Tragedy is available to check out at the library....

Becoming the-Best-Version-of-Ourselves

The Polk County Standard Journal 15 Jun 2019
Eventually, most of us arrive at a time in our lives when we say to ourselves, “something is wrong!” What we are often saying is, “this is not who I am” or “this is not who I want to be.” Continuing to do nothing becomes more and more uncomfortable, like treading water rather than swimming to shore....

Connie K. Stanforth

The Athens Messenger 15 Jun 2019
1, 1941 ... She had a positive influence on so many children of all ability levels, encouraging their love of learning and discovery. Connie enjoyed sports activities, particularly water sports and golf. She loved swimming, boating, fishing, and water skiing, spending summers as a youngster at Guilford Lake, near Lisbon, Ohio ... ....

Homes and gardens events around Portland: Workshops, garden tours and more

The Oregonian 15 Jun 2019
Events are free unless noted ... ONGOING ... 10-11 a.m ... 10-11 a.m ... 25 ... 28 ... 27 ... 3 ... Look for wildlife, listen to the wind and creek, water the Children’s Discovery Garden, read a story and craft something fun ... Kalmiopsis Discovery Day at Leach Garden ... Celebrate with a botany discovery table, nature tour, stone cabin open house and botanical scavenger hunts for all ... ....

Carbon-neutral solar fuel prototype developed in Zurich

Swissinfo 14 Jun 2019
A Swiss research team has unveiled technology than can produce car and plane-ready fuel from nothing but air and water, a discovery with potentially big consequences for transport and the environment....

Recovery begins on Wallowa Lake barrels that may contain Agent Orange ingredients

The Oregonian 14 Jun 2019
Also on Thursday, officials announced that the eastern Oregon town of Joseph, which draws its drinking water from the lake, had switched over to a backup well that it will continue using while the recovery continues ... The barrels could be sitting in water that’s between 90 and 140 feet deep, said the department spokeswoman, Laura Gleim....

Has the ‘frankenfish’ invasion of Pennsylvania grown much, much worse?

Penn Live 14 Jun 2019
waters? ... Northern snakeheads were first observed in Maryland waters in 2002, and shortly after its discovery in Potomac River in 2004, the species gained a foothold in tidal waters ... Invading snakeheads found in more Maryland waters....

Key moments in Flint, Michigan's lead-tainted water crisis

McAlester News-Capital 14 Jun 2019
In an effort to save money, Flint begins drawing water from the Flint River for its 100,000 residents ... Todd Flood, a special prosecutor who spent three years leading a criminal investigation of the Flint water scandal, is fired in the fallout from the discovery of 23 boxes of records in the basement of a state building....

Pemex's corruption crusade isn't winning over investor -CEO

Petroleum World 14 Jun 2019
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Isro gears up to launch Chandrayaan-2 on July 15

Deccan Chronicle 13 Jun 2019
While Chandrayaan-1 (launched in 2008) had 11 instruments -five from India, three from Europe, two from the US and one from Bulgaria -- and was credited with discovery of water on the lunar surface, Chandrayaan-2 would carry 13 from India (eight onboard the orbiter, three onboard the lander, and two onboard the rover), and one from Nasa....

The ocean on Jupiter's moon Europa has table salt, just like Earth's seas

CNN 13 Jun 2019
Europa is one of the intriguing water worlds in our solar system and potentially a place where life could exist in a subsurface ocean. The discovery of sodium chloride means Europa's ocean could look more like those on Earth and even possibly include salt ... A study published Wednesday in Science Advances sheds light on the discovery....

Barrels possibly containing Agent Orange ingredients remain months after Wallowa Lake discovery

The Oregonian 13 Jun 2019
The plodding response to the discovery of a barrel potentially laden with toxic herbicides -- in a town’s drinking water supply -- has left residents wondering what could possibly be taking so long ... Yet in 10 months since the discovery was reported, the state’s only investigation ......