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.

This page contains text from Wikipedia, the Free Encyclopedia -

Latest News for: Water discovery


Newly Discovered Jurassic Vampire Squid Species Found "With Prey In Its Arms"

IFL Science 27 Feb 2024
The discovery of a vampire squid specimen from the Early Jurassic could help reveal the poorly understood ancestry of this unique species ... More than a dozen ancestral species are known from times when they apparently lived in shallower waters, but they’re still enough to make every discovery precious....

HBO Max March 2024 Schedule: New TV Shows & Movies Lineup

Coming Soon 27 Feb 2024
Credit. A24 via HBO. Here is the HBO Max March 2024 schedule. These new TV shows and movies are confirmed to be coming to the streamer next month ... March 1 ... Cabaret (1972) ... White Water (Discovery Channel) ... Mini Beat Power Rockers, Season 1-4A (Discovery LATAM) ... Seized at the Border, Season 3 (Discovery Channel) ... Screaming Room, Season 3 (Discovery Channel) ... ....

The real-life Trigger Point: Bomb disposal expert reveals what it

The Daily Mail 27 Feb 2024
It comes amid a spate of bomb discoveries in recent weeks, including a WWII bomb discovered in Plymouth which caused massive disruption ... After the chaos that erupted last week following the discovery of a WWII bomb in Plymouth, another wartime bomb was found in Bradford, near a railway track....

NSB 'State of the City' updates residents on hurricane recovery, growth and more

News Journal - Daytona Beach 27 Feb 2024
“Of the 12,000 homes that accumulated anywhere from 4 inches to 1 feet of water during (tropical storms) Ian and Nicole, now less than 20 remain uninhabitable,” Cleveland said ... He mentioned recent oyster repopulation efforts along parts of the river, with “increased placement of oyster beds filtering at up to 50 gallons of water a day per oyster.”....

Bodycam footage of Don Steven McDougal shows Swastika-tattooed Audrii Cunningham murder suspect...

The Daily Mail 27 Feb 2024
Don Steven McDougal, the Swastika-tattooed suspect in the brutal murder of Audrii Cunningham, refused to put on clothes for his arraignment and snarled at cops, bodycam footage shows ... 'Come on ... 'I ain't got no clothes.' ... Come on ... Officials added that the Trinity River Authority lowered water levels on the river, which led to the discovery of her body ... ....

China’s recently discovered Bozhong 26-6 200 million cubic meters of reserves

Interesting Engineering 26 Feb 2024
China claims massive 100-million-tonne untouched oil reserve discovery China to launch its first ultradeep water drillship for worldwide oceanic oil and gas exploration ......

Tens of Thousands of Ancient Coins Found Off Sardinia

Greek Reporter 26 Feb 2024
Find on Sardinia among the “most important coin discoveries... “The treasure found in the waters off Arzachena represents one of the most important coin discoveries,” in recent years, said Luigi La Rocca, a Sardinian archaeology department official, per Associated Press....

Paris holds its breath for Olympic swimming events in murky Seine

Lebanon Democrat 26 Feb 2024
Organisers of the Olympic and Paralympic Games in Paris may be feeling a little queasy over their commitment to hold open water swimming in the scenic but often polluted Seine ... The bacteria in the water increases sharply when heavy rain sweeps debris and untreated wastewater into the river from the banks and the overflowing drains and sewers.�....

Energy-saving electrochemical hydrogen production via co-generative strategies in hybrid water electrolysis

Phys Dot Org 26 Feb 2024
Hydrogen production from water ... Qinfang Zhang from Yancheng Institute of Technology, China, reviewed some key guidelines for the discovery of efficient multi-functional hybrid water electrolysis (HWE) systems for co-generation of energy-saving H2 and high value-added products....

Scientists and space agencies are shooting for the Moon – 5 essential reads on modern ...

Maryville Daily Forum 26 Feb 2024
Water in ice ... For several years, scientists have predicted that the lunar south pole might have water in the form of ice. And Chandrayaan-3’s sulfur discovery gives scientists more insight into how and how recently ice might have formed on the surface. Comets or volcanic activitycould have brought water to the Moon years ago....

What ancient farmers can really teach us about adapting to climate change – and how ...

The Huntsville Item 26 Feb 2024
Among these discoveries are also success stories, where ancient farming practices helped civilizations survive the hard times ... Agricultural sustainability is as much about power and sovereignty as it is about soil, water and crops ... Discoveries in recent years have shown how the ......

Audrii Cunningham’s family says suspect's name didn't show up in sex offender registration system: 'System ...

Hindustan Times 26 Feb 2024
McDougal has been ordered to be held without bond ... Cunningham’s father and grandmother said they are devastated by the tragedy ... We also wish to thank the non-profit organization Texas EquuSearch for their tireless efforts that ultimately led to the discovery of, and recovery of Audrii’s body from the waters of the Trinity River ... .......

32 crew members lost, mystery solved in the depths

The Daily Telegraph Australia 24 Feb 2024
The 120 year old mystery of SS Nemesis and the 32 crew members lost at sea has been solved, with the accidental discovery and subsequent identification of a shipwreck in waters off Port Kembla .......