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Ethan's Halloween photo Ethan Siegel is a theoretical astrophysicist in Portland, OR. You can learn about him, contact him, or just enjoy the site.

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2011: Winner - Charm Quark - 3QuarksDaily Prize in Science.

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2010: Best Blog by physics.org.

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2010: People's choice award by physics.org!

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May 30, 2010

Weekend Diversion: Hey, Beardo!

Category: Random Stuff

"Shave off your beard and wear a dress. You would be a great female impersonator." -Simon Cowell No, this post has nothing to do with Simon Cowell, but like American Idol, I do have a song for you. Have a...

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May 28, 2010

The Land of Opportunity

Category: Astronomy

"You must live in the present, launch yourself on every wave, find your eternity in each moment. Fools stand on their island opportunities and look toward another land. There is no other land, there is no other life but this."...

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May 27, 2010

How Far to the Stars?

Category: Astronomy

"Mortal as I am, I know that I am born for a day. But when I follow at my pleasure the serried multitude of the stars in their circular course, my feet no longer touch the Earth." -Ptolemy When you...

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May 24, 2010

Galaxy, Galaxy on the Wall...

Category: Astronomy

"Magic mirror on the wall, who's the fairest one of all?" -the Wicked Queen For a galaxy, though, it's really not fair to ask which one's the fairest. It's simply too subjective of a question. But size, now that's something...

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May 23, 2010

Weekend Diversion: Taking Virtue to the Virtue Cops

Category: Random Stuff

"When a resolute young fellow steps up to the great bully, the world, and takes him boldly by the beard, he is often surprised to find it comes off in his hand, and that it was only tied on to...

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May 22, 2010

How big and how far is the Moon?

Category: Astronomy

"The moon's an arrant thief, And her pale fire she snatches from the sun." -William Shakespeare Let's assume you lived before we walked on the Moon. Before we had ever been to space, hell, even before the invention of the...

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May 19, 2010

How to Make a Real Shooting Star!

Category: Stars

"I would rather be a superb meteor, every atom of me in magnificent glow, than a sleepy and permanent planet. The function of man is to live, not to exist. I shall not waste my days trying to prolong them....

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May 17, 2010

Why Globular Clusters are the Smallest

Category: Astronomy

"From the intrinsic evidence of his creation, the Great Architect of the Universe now begins to appear as a pure mathematician." -Sir James Jeans Last time we met, I posed a mystery to you: why are globular clusters the smallest...

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May 16, 2010

Weekend Diversion: Partner Acrobatics!

Category: Random Stuff

You see that there is no war within you. You're on your own side, and you are your own strength. -Terri Guillemets Many of you don't know this, but over the last couple of months, my wife and I have...

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May 14, 2010

Globular Clusters: A minor mystery?

Category: Astronomy

"I may be an old lion, but if someone puts his hand in my mouth, I can still bite it off." -Wilhelm Steinitz When you look at a typical galaxy, you usually find a disk, a bulge, and a few...

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