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Ice

Space

Dawn continues to unravel Ceres' secrets

Dawn's science team has presented a treasure trove of data and images captured by the spacecraft as it orbits a mere 240 miles (385 km) above the surface of the dwarf planet Ceres. The observations, which include a stunningly detailed view of the famous Occator crater, are leading to a series of breakthroughs regarding the nature of the enigmatic wanderer including the first detection of ice water on the planetoid's surface.Read More

Aircraft

Slippery substance-secreting SLUGs to stop ice buildup

Anyone who's tried to travel by air during winter might know how frustrating it can be to sit on the tarmac while ice is removed from the wings of the aircraft. A truck spraying the wings with a de-icing agent might get the job done, but it also means precious travel time is wasted. To reduce downtime, scientists have developed a material that secretes a slick substance when temperatures drop to prevent ice from sticking to the wings in the first place.Read More

Aircraft

A pinch of graphene could keep airplane wings ice-free

Both airplane wings and helicopter rotor blades are subject to one problem – they can both ice up. Although de-icing solutions can be applied when aircraft are on the ground, that doesn't stop ice from eventually forming once they're in the air. That's why scientists at Texas' Rice University have developed a new graphene-based coating that continuously melts ice by conducting an electrical current.Read More

Materials

Beetles inspire ice-resistant aircraft surfaces

Rerouting warm engine air and pumping ice-melting chemicals onto the wings are a couple of ways to keep aircraft surfaces free of frost during flight, but researchers are looking for a more efficient technique. Taking their inspiration from a water-gathering desert beetle, scientists have developed a patterned surface on which the spread of ice can be controlled and prevented. They say the material could be scaled up and applied to not only aircraft parts, but also wind turbines, heat pump coils and car windshields.Read More

Space

Rosetta confirms the presence of water ice deposits on the surface of comet 67P

New analysis of data collected by ESA's Rosetta orbiter has revealed significant quantities of water ice on the comet 67P/Churyumov–Gerasimenko (67P). While the presence of water had previously been observed on 67P both in the comet's coma, and as frost on the surface, this discovery represents the first time that a surface deposit of water ice has ever been definitively confirmed on the comet.Read More

Good Thinking

City of Edmonton gets its own Ice Castle

When Brent Christensen moved from California to Utah several years ago, he took advantage of the colder climate by building his kids a backyard ice rink … although that rink also included an ice slide, an ice cave, and a 20-ft (6-m) castle-like ice tower. People saw it, they liked it, and the Ice Castles business was born. Since then, Christensen and his team have built their elaborate Ice Castles in a few select American cities every winter. Last month, however, they began construction on a castle in Edmonton, Alberta, Canada – their first-ever creation outside the US. We dropped by, to get a first-hand look at the construction process.Read More

Salt-impregnated asphalt de-ices itself

Living someplace that gets snow in the winter may have its perks, but the ice-melting salt that's spread on the roads isn't one of them. Besides the fact that it gets all over our cars and clothing, it also has to be reapplied throughout the winter, harming the environment in the process. If a new type of asphalt reaches production, however, salt-spreading may become a thing of the past.Read More

Architecture

Sweden's coolest hotel opens for business

Jukkasjärvi, Sweden, is hosting the 26th edition of its famous Icehotel. The hotel is made from 4,000-5,000 tons (3,629-4,536 tonnes) of ice and boasts chandeliers made from 1,000 hand-cut ice-crystals. This year, an African elephant, a Gothic ice cave and 1970s Love Capsule await guests.Read More

Environment

Claimed darkening of ice sheet could actually be down to aging satellite sensors

In recent years, satellite photos of Greenland's ice sheet have shown what appears to be a darkening of the ice's surface. A number of scientists have suggested that this could be due to settled soot particles from fossil fuel production and/or forest fires, and that their presence could result in accelerated melting of the ice. Now, however, researchers from Dartmouth College believe that the ice may still still be relatively clean, and that its darkness in the photos could just be due to faulty sensors on the satellites.Read More

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