This first photo shows two of the roughly 1,300 specimens of minerals and gems on display in the Hillman Hall of Minerals and Gems at the Carnegie Museum of Natural History in Pittsburgh. I had a chance to see the exhibit yesterday. It was wild to see jewels created out of the ash from Mount […]
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66 million years ago, there was a Very Bad Day for nearly everyone on the planet. That’s when the asteroid responsible for ending the age of the dinosaurs crashed into the Yucatan Peninsula and destroyed about 78% of all species.This picture from Trinidad Lake State Park in Colorado shows one of the places where the
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The Hocking Hills region of south-eastern Ohio is a jewel of an area — ravines, caves, and stone walls interweave throughout old-growth forest. Water is everywhere: streams, small cataracts, and waterfalls echo in many parts of the forest.The area was formed millions of years ago, when the Appalachian Mountains were eroding and the shallow seas
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Hocking Hills State Park in Ohio has long been a place of interest for human cultures. The Blackhand sandstone formed a series of ravines there, and coupled with the abundant water supply allowed for a micro-climate atypical for Ohio. This explains the existence of trees like black birch, Canadian yew, and hemlocks which don’t normally
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Who could showcase the spirit of American trust in mid-20th-century corporate capitalism more than Walt Disney? His ambition and vision propelled him to wild success at a myriad of ventures in his lifetime. One of these great ideas failed to pan out however, and you see that portrayed here. These watercolor images are mock-ups by
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Many, many places have I loved in London, but Highgate Cemetery has a special place in my heart. Construction began on this Victorian burial ground in 1839, when the city had long outgrown real estate for the dead. Only the very wealthy afforded tombs and mausoleums there. Tourists today can seek out the graves of
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My niece and I got to hike up Mount Tamalpais, aka “Mount Tam,” one of the most treasured State Parks in California. Cresting off the coast of Stinson Beach, Mount Tam features giant redwoods and moss-covered rocks that frame a high tree canopy — until the trails open up to the stunning ocean views you
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The Auburn State Recreation Area, 40,000 acres of land along the Middle and North Forks of the American River, almost never existed.Once a major locus of interest during the California Gold Rush, the canyon was scheduled to be dammed when it was discovered to be along a major earthquake fault line and that damming it
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This is a close-up picture that I took earlier this month near the Appalachian Trail in Central Pennsylvania of a very tiny fungus with an adorable moniker and a long pedigree for human use. Called “green elfcup” or “green wood cup,” the technical name of this mushroom is “Chloriciboria aeruginascens,” and although it is a
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Early this morning (as in, from 2:30-4:30 a.m.) my part of the world was treated to a near-total lunar eclipse. The shadow of the earth crept across the full moon’s surface, eventually turning it a reddish color (due to the refraction of light through the Earth’s shadow). As anyone who has seen a lunar eclipse
“They will see that there is in it nothing more than Natural, and nomore than the necessary result of the Motions of the Sun and Moon.” — so wrote astronomer Edmond Halley about the solar eclipse that he predicted for 1715. For millennia, eclipses – especially solar eclipses — had been considered frightening events that
These rocks from the northern shore of Lake Superior are from the dullest period in our planet’s history, apparently. Most of us humans of the early twenty-first millennium do not do well with being bored. Imagine, then, one billion years of it. From 1.8 to 800 million years ago, Earth’s life forms remained relatively
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The magnificent ruins shown here are only some of the thousands of Ancient Puebloan structures found in southwestern Colorado’s Canyon of the Ancients National Monument. This particular site, found along the 6.5 mile Sand Canyon (loop) Trail, is similar to many of the region, with remarkable masonry that includes cliff dwellings, towers, public roofed
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Here are four different species of finches from the Galapagos Islands. Although they look similar, their differences include their beaks — each one takes advantage of a different type of seed. Natural selection shaped the trajectory of these birds’ appearance, and one of the scientists who first figured out how this worked passed away yesterday
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The root system you see here isn’t just part of the plant: it’s joined by fungi, making it a mycorrhiza — a symbiosis of plant and fungi. Most plants rely on mycorrhizae — the fungi elements give the roots better access to precious nutrients like phosphorous and water, and the plant bits give the fungus
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TIL that 30 million years ago a species of mound-building termites evolved with next-level techniques that we humans could learn from in order to deal with our environmental challenges. These are the Macrotermes, and what makes them particularly special is the very ancient relationship they co-created with the fungus Termitomyces. Neither survives without the
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It’s pleasant, from where I write this post in my ice-bitten and wintery grey state of Pennsylvania, to look at this lovely plant. Here is _Indigofera tinctoria_ the most important plant to make the dye colored indigo — a color that meant beauty to some, but misery to many others. Indigo is one of
This extraordinary scene from a 348-long muslin painting called “Panorama of the Monumental Grandeur of the Mississippi Valley” was done by an American artist named John J. Egan in 1850. Looking carefully at the details, you can see that white Americans are using their black slaves to open up an American Indian burial mound. The
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This place looks bucolic and peaceful, no? Hard to believe it’s in a place called hell. This warrants an explanation. What you see here is a photo of part of the Valley of Hinnom, which is located outside of modern Jerusalem. Translated into the Aramaic language, that reads “Gehenna,” which does in fact refer
In 1980 nearly 200 square miles of subarctic meadow, forest, peat bogs, and mountains were set aside to form the Carpathian National Nature Park. Home for many plants and animals in its Alpine climate, the Carpathian National Nature Park is located in Western Ukraine. The park’s great beauty includes glacial lakes and waterfalls, trees like
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