|Filed Under:||Academics / General Science|
|Posts on Regator:||404|
|Posts / Week:||5|
|Archived Since:||September 5, 2016|
The Arctic and Antarctica, separated by more than 15,000 kilometers, may be geographic opposites but they share many similarities, including their diverse arrays of bacteria and other microscopic life forms. A new study looking at the...Show More Summary
Blood-sucking, disease-spreading ticks are one of the most maligned parasites in the world, and new evidence shows they’ve been doing their dirty work for a long time: Fossilized ticks dating to the mid-Cretaceous represent the first direct evidence that the ancestors of today’s pesky critters once plagued dinosaurs.
My fellow EARTH Magazine contributor Mary Caperton Morton is the author of “Aerial Geology,” a beautiful and massive tome that profiles a hundred geologically interesting locations across North America. Mary was kind enough to forward me a copy for review, and I was delighted to flip through its gorgeous pages. Show More Summary
March 14 is the birthday of Albert Einstein and also Pi Day, which celebrates the mathematical constant 3.14 that features in some of the physicist’s famous equations
Since the 1970s, just 7 percent of the heat associated with humancaused warming has melted snow and ice or warmed the land and atmosphere. The other 93 percent was absorbed by the oceans, where temperatures are now increasing at nearly all latitudes and depths, threatening to fundamentally alter our planet by disrupting ocean circulation.
The rugged topography of the island of Corsica, off the coast of France and Italy, is a blend of rocks of very different ages and origins thrust together during one of Earth's great tectonic uphevals.
The vast majority of Earth’s carbon is stored in the planet’s interior. This buried carbon is not isolated from the surface over geologic timescales, however; some of it is released back into the atmosphere as carbon dioxide and other gases when volcanic eruptions occur above subduction zones or island arcs.
Massive volumes of rock called large igneous provinces (LIPs) have formed many times throughout Earth’s history, fed by some of the planet’s mightiest volcanic events. The volcanic eruptions, sometimes lasting millions of years and pouring...Show More Summary
The relationship between melting glaciers and rising sea levels is best described as: “It’s complicated.” A new online tool shows just how counterintuitive predictions of how melting land-ice will affect coasts can be.
Edward O. Wilson, professor emeritus and honorary curator in entomology at Harvard, is a scientist of acclaim and renown, a naturalist and experimentalist who has made astounding discoveries about the natural world. These discoveries...Show More Summary
From Antarctica to the Arctic; from polar caps, permafrost and glaciers to ocean-rafted sea ice; and from burly bears to cold-loving microbes, fascinating science is found in every nook and crevasse of Earth’s cryosphere, and new findings are announced often. Here are a few of the latest updates.
Saturn’s sixth-largest moon, Enceladus, is covered by ice, but just beneath its icy surface lies an ocean of liquid water. New research suggests that this internal ocean may be maintained in a liquid state by heat generated by tidal friction within the moon’s fragmented, rocky core.
Since the late 19th century, Civil War battlefield landscapes have changed. Some have been plowed under and developed, while elsewhere, woods have been cut down or become overgrown. But the rocks that dotted those battlefields from Gettysburg to Mississippi largely still stand. Show More Summary
On Dec. 11, 2013, Upstate New York’s Tug Hill region received more than 100 centimeters of snow in 24 hours. And annually, the region, which covers more than 5,000 square kilometers to the east of Lake Ontario, can see up to five times that amount. In comparison, Toronto, on the northwestern coast of the lake, averages less than 125 centimeters of snow each year.
Excavations at a dinosaur trackway found in 2009 in the French village of Plagne, 200 kilometers east of Lyon, revealed 110 sauropod footprints spanning a distance of 155 meters, making the site the world’s longest sauropod trackway....Show More Summary
Genetics studies have dated the largest migrations of early Homo sapiens out of Africa to between 70,000 and 55,000 years ago, although smaller groups may have left earlier. The most widely accepted exodus theory, known as the “green...Show More Summary
As a boy growing up on the East Coast, Harold Tobin loved being outdoors but was not all that excited by geology or the region’s ancient rocks. But the catastrophic eruption of Washington state’s Mount St. Helens in 1980, when Tobin was 15, and the notion that tectonic plates must be moving beneath the Pacific Northwest, captured his imagination. Show More Summary
Since 2005, a steady trickle of reports detailing proteins and other soft tissues preserved in fossils of dinosaurs and other ancient animals has gradually worn down the disbelief that such tissues can last through geologic time. InShow More Summary
A massive landslide has been encroaching on the village of Maca, Peru, since the 1980s. Today, it provides geologists with a laboratory to study slow-moving landslides, especially how they react to rainfall and earthquakes.
All animals depend on their ecosystems for habitat. And, in turn, many animals impact their ecosystems by engineering the landscape to suit their needs. Beavers provide an iconic example of ecosystem engineering when they build dams, which influence streams and wetlands. Show More Summary