Now on ScienceBlogs: Let 'em starve
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!
April 29, 2009
Category: Solar System
Everyone knows the Solar System, right? Sun at the center, followed by the four, rocky inner planets, the asteroid belt, the four outer gas giants with their moons, and then the Kuiper belt. Sometimes Jupiter sends an asteroid headed our...
Posted by Ethan Siegel at 6:52 PM • 18 Comments • 0 TrackBacks
April 28, 2009
Category: Galaxies
Stars are like everything else in the Universe (to quote E.B. White): we're born, we live a little while, we die. The thing that people may not realize is this: stars have been doing this since before the Universe was...
Posted by Ethan Siegel at 3:05 PM • 12 Comments • 0 TrackBacks
April 27, 2009
Category: Environment
For over 100 million years, dinosaurs, and not mammals, were the dominant form of life on Earth. The pinnacle of evolution at the time, dinosaurs filled the niches of being the largest, most differentiated animals -- herbivores and carnivores both...
Posted by Ethan Siegel at 1:54 PM • 32 Comments • 0 TrackBacks
April 25, 2009
Category: Random Stuff
Do you remember when music videos were brand new things, and ranged from Cartoonish Violence to Eclectic Pleas for Individual Freedom? Well, one of my favorite videos was by the Norwegian band A-Ha, whose surreal, romantic fantasy video for their...
Posted by Ethan Siegel at 2:05 AM • 2 Comments • 0 TrackBacks
April 24, 2009
Category: Environment
As many of you have heard, the Earth has been getting warmer, rapidly, since the industrial revolution. And as many of you have also heard, there is, historically, a link between greenhouse gases and temperature here on the Earth. So,...
Posted by Ethan Siegel at 12:18 PM • 25 Comments • 0 TrackBacks
April 22, 2009
Category: Solar System
There are many ways to celebrate Earth Day, from sustainability efforts (and check out our new blog, Guilty Planet) to simply appreciating nature. And while this is a beautiful shot of Forest Park right here in Portland, it doesn't compare...
Posted by Ethan Siegel at 1:39 PM • 7 Comments • 0 TrackBacks
April 21, 2009
Category: biology
In addition to the article I just wrote about the newly discovered planet in the Gliese system, Dynamics of Cats has a great writeup as well. They also have a picture that I didn't include in my original post, and...
Posted by Ethan Siegel at 1:55 PM • 9 Comments • 0 TrackBacks
Category: Solar System
One of the holy grails of modern astrophysics is to find a planet orbiting another star that can support life on it. There are all sorts of missions dedicated to searching for habitable worlds. But with one star system, Gliese...
Posted by Ethan Siegel at 11:19 AM • 6 Comments • 0 TrackBacks
Category: Solar System
The Sun is doing something interesting, and has been for the last few years. As a solar physicist noted last year, there really haven't been many sunspots lately. Look at 2001 (left) and 2009 (right) for the difference in sunspot...
Posted by Ethan Siegel at 10:56 AM • 17 Comments • 0 TrackBacks
Category: Physics
You've seen it a bunch of times when you're reading the specs on a new car: the number of foot-pounds of torque that it puts out. Well, the 2009 New York Auto Show just happened, and I was reading the...
Posted by Ethan Siegel at 9:46 AM • 9 Comments • 0 TrackBacks
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