Astronauts surveying the geology of the Grand CanyonAstronaut Roger Chaffee and geologist Elbert King explore the Grand Canyon, March 5-6 1967.
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Headline: Bill Deny: Science GuyNow, we all know that air pressure is a function of the atmospheric conditions, it’s a function of that. So, if there’s activity in the ball relative to the rubbing process[…] So the atmospheric conditions as well as the true equilibrium of the football is critical to the measurement. …

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THERE’S TOO MUCH TO SAY ABOUT LAST SUNDAY'S EPISODE OF COSMOS.

Steve Newton and I have shared Cosmos reviewing duties, and this week Neil deGrasse Tyson and his team served us an overflowing plate.

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Ah, California living. Land of fruits and nuts. And fungi. Impressed one day by the unusually high number of kinds of mushrooms at my local produce store (I stopped counting at 25), I posted a picture of the array on my Facebook page. Whereupon Jim Strickland waggishly warned me about using the term “kinds”, a taxonomic term of creationists that fails to map onto any actual scientific taxonomic system.

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Comet ISONWhat neighborhood? Mine? Yours? I’m actually referring to both of our neighborhoods and a good deal more. I’m talking about the Solar System, and not just out to Neptune or Pluto but a thousand times farther–out to the Oort cloud of would-be comets.

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