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Big Bang X-Mas Tree

One Sunday morning, while reading Dennis Overbye’s Lonely Heart of the Cosmos , it occurred to me: a Christmas tree is shaped just like CERN’s diagram of the evolution of the universe.

December 21, 2011 — Casey Rentz

Solstice, Periapsis, and the Hades Orbit

The Sun rising above the Arctic plain (H. D. Nygren, NOAA Corps.) As our spinning globe of rock and metal tracks its steady path around the Sun, we find ourselves crossing once again through the winter solstice, the point at which Earth's northern pole is pointed as far from our fierce stellar parent as it can be (this year at a coordinated universal time of 5.30 am on December the 22nd, almost the same as 5.30 am Greenwich Mean Time)...

December 21, 2011 — Caleb A. Scharf

#SciAmBlogs Tuesday - Zimmer on writing, parasites, anti-aging, pygmy hippo and more.

Some great stuff on the blogs today:- Mariette DiChristina - A Busy 2011 at Scientific American - Eric Michael Johnson - Probing the Passions of Science: An Interview with Carl Zimmer on the Art of Science Writing and Probing the Passions of Science: Carl Zimmer Delves Beneath the Surface of Science Writing - Stephen Di Cerbo - Ichthyology Meets Printmaking - Melissa C...

STAFFDecember 20, 2011 — Bora Zivkovic

A Busy 2011 at Scientific American

When I wrote my end-of-the-year update for staff, Bora Zivkovic, our chief blogs editor, reminded me that others are also interested in the goings on at Scientific American .

STAFFDecember 20, 2011 — Mariette DiChristina

Caught on Video: Endangered Pygmy Hippo Seen Slipping through Nighttime Liberia

Scientists have captured video images of a wild pygmy hippopotamus ( Choeropsis liberiensis ), a rare and elusive nocturnal species that has rarely been observed in its natural habitat in Liberia.Western scientists and zookeepers have been aware of the pygmy hippopotamus for more than a century, and the species breeds well in captivity, but very little is known about its behavior in its native forest habitats.The brief video, which you can see below, shows just a few fleeting seconds of a pygmy hippo as it slips between the underbrush in Liberia's Sapo National Park...

December 20, 2011 — John R. Platt

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