Now on ScienceBlogs: The Greatest Story Ever Told -- 07 -- Save the neutrons!
Ethan Siegel is a theoretical astrophysicist who currently teaches at Lewis & Clark College in Portland, OR. You can learn about him, contact him, or just enjoy the site.
April 8th @ 7PM -- premiere of the short film "Dark Matter", starring me, at Hollywood Theatre in Portland, OR!
November 30, 2009
Category: Dark Energy
Follow humbly wherever and to whatever abyss Nature leads, or you shall learn nothing. -T.H. Huxley We've spent a little bit of time talking about dark energy, including what we think of it, how we first discovered it, and how...
Posted by Ethan Siegel at 7:39 PM • 16 Comments • 1 TrackBacks
November 29, 2009
Category: Random Stuff
Saying thanks is one of the best things we can do to appreciate the good things in our lives. This goes for our partners, friends, families, coworkers, acquaintances, and for some of us, our dear readers. (Thank you all!) There...
Posted by Ethan Siegel at 1:17 PM • 1 Comments • 0 TrackBacks
November 27, 2009
Category: Astronomy
If you've never been to the Galaxy Zoo website, you have been missing out. The Sloan Digital Sky Survey is a pretty impressive telescope, but the wide-field camera system on it is what's truly amazing. Have you ever seen a...
Posted by Ethan Siegel at 3:10 PM • 3 Comments • 0 TrackBacks
November 25, 2009
Category: black holes
All that matters, in the real world, is that something is both massive and compact enough so that, within a certain radius, light cannot escape from it. That is the astrophysical definition of a black hole. -me We've been talking...
Posted by Ethan Siegel at 6:35 PM • 48 Comments • 0 TrackBacks
November 23, 2009
Category: black holes
The cradle rocks above an abyss, and common sense tells us that our existence is but a brief crack of light between two eternities of darkness. -Vladimir Nabokov Last Friday, I posed a question to you, and you kindly responded...
Posted by Ethan Siegel at 3:37 PM • 23 Comments • 0 TrackBacks
November 22, 2009
Category: Random Stuff
He that hath a beard is more than a youth, and he that hath no beard is less than a man. -Shakespeare Far be it from me to take advice from Shakespeare, though. I prefer my advice from bluegrass musicians....
Posted by Ethan Siegel at 5:49 PM • 13 Comments • 0 TrackBacks
November 20, 2009
Category: Q & A
Black holes have come up a couple of times this week, and I've always wondered something. When you fall into a black hole, all sorts of strange things happen. The most well-known one is that nothing -- not even light...
Posted by Ethan Siegel at 7:29 PM • 46 Comments • 0 TrackBacks
Category: black holes
Why it is that of all the billions and billions of strange objects in the Cosmos -- novas, quasars, pulsars, black holes -- you are beyond doubt the strangest? -Walker Percy When you watch someone fall into a black hole,...
Posted by Ethan Siegel at 5:15 PM • 16 Comments • 0 TrackBacks
November 18, 2009
Category: black holes
In the comments on one of my posts, someone pointed me towards Stephen Crothers, who gives the following argument (in a nutshell) as to why black holes cannot possibly exist: General Relativity is our theory of gravity, which relates the...
Posted by Ethan Siegel at 10:25 PM • 49 Comments • 0 TrackBacks
November 17, 2009
Category: Astronomy
Some meteor showers are spectacular, while most are mundane. If you sit around during a typical shower, you might see anywhere from 50 to 100 meteors an hour, if the Moon isn't out. If you take a time-lapse photograph and...
Posted by Ethan Siegel at 3:17 PM • 11 Comments • 0 TrackBacks
PZ Myers 03.21.2010
PZ Myers 03.21.2010
Orac 03.22.2010
Ed Brayton 03.22.2010
Orac 03.12.2010
