How do you prove that a black hole exists? It is so dense, not even light can escape its grasp
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The official Keepers of Time will add a leap second to the world’s master clocks (in the U.S. Naval Observatory) on December 31 at 23:59:59 UTC
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That’s right. These three undergraduates from Leiden University in the Netherlands discovered a planet, and not just any old planet
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Charles Seife wrote an op-ed for yesterday's New York Times about the recount in Minnesota, which seems like it ought to be a simple problem but isn't
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Michael Stringer of Westcliff-on-Sea, England won the 2008 Nikon Small world Photomicrography Competition earlier this year with the image below
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Primatologist and Amazon adventurer Marc van Roosmalen was convicted last year in Brazil of illegal wildlife trafficking and theft of government property
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In 1904, several Pygmies were brought to live in the anthropology exhibit at the St. Louis World's Fair
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I was surprised to read in the Washington Post yesterday that oak trees from northern Virginia to Nova Scotia failed to produce any acorns this year
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This is a sea slug, Elysia chlorotica, and it looks like a leaf because it has acquired chloroplasts from its algal prey and stored them in its gut lining
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In preparation for tomorrow’s big day, I offer you a selection of articles on the theme of turkey science:How did the turkey in my oven get so big?
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One of the first Smithsonian articles I worked on was last year’s Guerrillas in Their Midst, about the endangered mountain gorillas of Rwanda and Congo
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The famed astronomer wasn’t always so well known
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This week’s Picture of the Week is the Earth as seen from the Moon, circa 1966.Thinking ahead, NASA sent five missions up to photograph the moon
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With the announcement that the woolly mammoth genome has been sequenced, it seems natural to ask when we will finally see live mammoths
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If you don't get back to sleep, you risk forgetting what you learned, impairing your ability to learn, and preventing yourself from extracting concepts
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It is difficult to figure out the behaviors of an animal that lived thousands—or millions—of years ago when all you have are its fossilized bones
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…the antilopine wallaroo, a type of kangaroo that lives in wet, tropical areas of Australia
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Megeleledone setebos (bottom left), an octopus species endemic to the Southern Ocean, surrounded by related octopus species that evolved in the deep-sea
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