Dec 18, 2025 · Columnar jointing at the Devil's Post Pile National Monument in California and a miniature display found by David Stone near Healy, Alaska. (Geophysical Institute photograph)

Dec 18, 2025 · Columnar jointing patterns in basalt create displays like the Devil's Post Pile in California (a natural shrinkage phenomenon, and the topic of an earlier column ). Cracked lake beds obviously …

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Discussion in a tent at a remote lake led to a new look at Alaska tectonic activity 75 million to 50 million years ago, a period spanning the Late Cretaceous through the early Paleogene.

Jul 4, 2007 · The trans-Alaska oil pipeline reflects the glow of a winter sunset. Photo courtesy Alaska Division of Community and Business Development.

PEERING THROUGH AN ICEBERG– s rarcheeRs e studying Yakutat Glacier admire a floating iceberg with a large tunnel through it. Running glacial melt water formed the tunnel before the ice calved. …

Nov 18, 2025 · The title page of the Alaska Climate Research Center’s monthly summary for December crisply explained what a busy weather month it was across the state.• Almost a month-long cold …

May 18, 1995 · Separate regions within the columnar, anvil-topped cloud, now called a cumulonimbus, contain opposite electrical charges. Scientists theorize these charges may be formed when …

Dec 18, 2025 · In this case, the features are caused by light refracted through columnar crystals that are falling with their long dimensions in the horizontal plane. Sometimes conditions are such that only a …

Oct 3, 1990 · A strange thing happens at my house every October: the woodstove seems to get bigger. It's been an inconspicuous little black thing in the corner of the living room all summer, but come …