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(This program is no longer available for online streaming.) Almost a century ago, paleontologists found the first tantalizing hints of a monster even bigger than Tyrannosaurusrex, perhaps the largest ...

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It's a hifalutin title, but that's what this feature offers—in a capsule version, of course. Our time line stretches from the big bang some 10 to 20 billion years ago to the time 10 100 years in the ...

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Unlike the octopus's arms, which that animal often uses to move and carry objects, the cuttlefish's eight arms are specialized for grasping prey after the cuttlefish captures it with its two elongated ...

Sir Isaac Newton once wrote, in what must be one of the most oft-quoted lines in the history of science, "If I have seen further it is by standing upon the shoulders of giants." Well, any of us who ...

Editor's Note: On the night of March 24-25, 1944, 76 Allied prisoners of Stalag Luft III, a German prison camp in Sagan, 100 miles southeast of Berlin, escaped through a tunnel named "Harry." Within ...

"The ordinary adult never gives a thought to space-time problems.... I, on the contrary, developed so slowly that I did not begin to wonder about space and time until I was an adult. I then delved ...

NOVA: Everybody has an image of Newton, the guy who got hit on the head with an apple and dreamed up the universal law of gravitation. Is there any truth to this? Buchwald: I doubt that an apple is ...