Earth from space A 2023 astronaut photo shows three dark hills, or mesas, towering above part of the Sahara desert in southern Mauritania. The structures are remnants of a single Paleozoic era formation, and have helped to create a series of striking sand dunes.
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Salamanders and newts are both long-tailed amphibians, but what's the difference between them?
Leopard cats were living alongside people in ancient China for more than 3,500 years before domestic cats arrived from Europe via the Silk Road.
Researchers have found footprints of large, bone-crushing dogs in the 12 million-year-old Ashfall Fossil Beds in northeastern Nebraska, suggesting these large carnivores may have survived a cataclysmic Yellowstone eruption that covered parts of North America in ash.
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Deep underground in southern China, there is a 20,000-ton tank of liquid that can detect neutrinos. Named JUNO, the detector's first results are in — and they're very promising.
A new study says observations from the NASA Fermi space telescope suggest a halo of dark matter around the center of our galaxy, but more information is needed to confirm the result.
Scientists have used a novel method to create sustainable, rainbow-colored fibers using bacteria in the lab.
At a small local chapter meeting of a professional society, Gordon Moore's talk laid out the rudiments of what would become "Moore's law, which would govern the electronics industry for a half century.
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