Jul 23, 2021 · In a 1997 paper on the endurance and possible usefulness of dead Alaska yellow-cedar trees, researchers Kent McDonald and Paul Hennon concluded it was good stuff: “All wood tested from the dead yellow-cedar trees, regardless of the number of years the trees had been dead, appeared to maintain strength with time.

Jun 30, 2005 · Alaska yellow-cedar has the strongest wood of any in the state, and grows on coastlines from Prince William Sound to northern California. In recent years, yellow-cedar have been dying of causes other than old age on more than 500,000 acres of Southeast Alaska, and scientists aren’t yet sure why.

Feb 18, 2021 · By coring other living trees in the area, including western hemlock, Sitka spruce, Alaska yellow cedar and mountain hemlock, the scientists found that the ghost forest had established itself in the path of La Perouse Glacier by about the year 1206. That was many centuries before the glacier rumbled forward to consume them.

Feb 6, 2025 · Witches' broom on spruce trees is caused by a rust disease (a kind of fungus disease). The rust lives on the spruce tree throughout the year. Each spring, small yellow pustules appear on the new needles of the broom. A strong sweet odor, which is easily recognizable, usually accompanies the maturation of these pustules.

Sep 12, 2024 · The Thule people who lived in the High Arctic 1,000 years ago left behind spruce carvings that intrigue archaeologist Claire Alix because the Thule lived hundreds of miles from the nearest living

Jan 23, 2025 · The late Yule Kilcher, a Swiss homesteader who knew the landscape around Homer better than anyone, once told ecologist Ed Berg that during Kilcher’s half century of observing the natural world aro

Apr 29, 2024 · The components sit inside a 4-inch diameter 9-foot fiberglass tube, with other parts produced on a 3D printer in the Geophysical Institute Machine Shop. A stabilizing drag skirt at the tail — in UAF’s blue and yellow colors — helps keep the instrument level during flight.

Feb 7, 2025 · The aurora is most often seen as a striking green, but it also occasionally shows off other colors, ranging from red to pink or blue to purple. Oxygen at about 60 miles up gives off the familiar green-yellow color, while oxygen at higher altitudes (about 200 miles above Earth’s surface) gives all-red auroras.

Jan 9, 2025 · I was asked the other day why fog lights were yellow. When I couldn't come up with an answer, I started asking around and discovered, to my surprise, that apparently nobody else could either.

Sep 21, 2023 · A very noticeable fall equinox feature in these parts is when deciduous tree leaves turn from green to yellow or orange or sometimes red, then fade and waft to the ground. Middle Alaska doesn’t have many species of deciduous trees: paper birch, aspen, willows and balsam poplar are all part of the dominant boreal forest here.