This diagram for the outer solar system shows the orbits of Sedna (in orange) and 2012 VP113 (in red). The sun and terrestrial planets are at the center, surrounded by the orbits (in purple) of the four giant planets — Jupiter, Saturn, Uranus and Neptune. The Kuiper belt, which includes Pluto, is shown by the dotted light blue region. Scott S. Sheppard/Carnegie Institution for Science hide caption

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New Dwarf Planet Found At The Solar System's Outer Limits

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This Freeloading Bird Brings Help — And The Help Smells Gross

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Early days: NASA's International Sun-Earth Explorer C (also known as ISEE-3 and ICE) was undergoing testing and evaluation inside the Goddard Space Flight Center's dynamic test chamber when this photo was snapped in 1976. NASA hide caption

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Space Thief Or Hero? One Man's Quest To Reawaken An Old Friend

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The Hadean zircons --€ the” oldest bits of Earth yet found --€” were discovered near here, on a sheep ranch in Jack Hills, Western Australia. Courtesy of University of Wisconsin hide caption

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At 4.4 Billion Years Old, Oz Crystals Confirmed As World's Oldest

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Sunset on the Firehole River, Yellowstone National Park. Bill Young/Flickr hide caption

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If Yellowstone Could Talk, It Might Squeak. Blame The Helium

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Climbing robots, modeled after termites, can be programmed to work together to build tailor-made structures. [Image courtesy of Eliza Grinnell, Harvard School of Engineering and Applied Sciences hide caption

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Robot Construction Workers Take Their Cues From Termites

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Graduate student Jennifer Klunk of McMaster University examines a tooth used to decode the genome of the ancient plague. Courtesy of McMaster University hide caption

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Ancient Plague's DNA Revived From A 1,500-Year-Old Tooth

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The eastern Grand Canyon was about half-carved (to the level of the red cliffs above the hiker) from 15 million to 25 million years ago, an analysis published Sunday suggests. But the inner gorge was likely scooped out by the Colorado River in just the past 6 million years. Laura Crossey/University of New Mexico hide caption

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Grand Canyon May Be Older (And Younger) Than You Think

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Computer networks and GPS systems are only possible because of the precision timekeeping of atomic clocks like the one above, says clockmaker and physicist Jun Ye. Ye Group and Baxley/JILA hide caption

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Tickety-Tock! An Even More Accurate Atomic Clock

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Kepler-22b, seen in this artist's rendering, is a planet a bit larger than Earth that orbits in the habitable zone of its star. Some researchers think there might be "superhabitable" worlds that may not resemble Earth. NASA/Ames/JPL-Caltech hide caption

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In Search For Habitable Planets, Why Stop At 'Earth-Like'?

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A reproduction of the mural from a room in Catalhoyuk, a Neolithic settlement in Turkey. Sarah Murray/Flickr hide caption

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There She Blew! Volcanic Evidence Of The World's First Map

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On Planet GJ1214 B, Expect Exotic Cloud Cover

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NASA/JPL-Caltech

Bon Voyage, Voyager: Old Friends Take Stock

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Vera Wojtesta was one of 300 babies flagged by New York's newborn screening program as at risk of having life-threatening Krabbe disease. Ben Shutts/Courtesy of the Wojtesta family hide caption

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Screening Newborns For Disease Can Leave Families In Limbo

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