Ethan's Profile
Ethan Siegel is a theoretical astrophysicist in Portland, OR. You can learn about him, contact him, or just enjoy the site.
Search
Recent Posts
- The Galaxy's Biggest Valentine
- Weekend Diversion: Interactive Scale of the Universe
- Hey, America! Break out the Binoculars after Sunset and see Uranus tonight!
- The Big Bang for Beginners
- Real Science and Health News: From a Truth Vigilante
- Weekend Diversion: The Greatest Thing Ever on Amazon.com
- Saturn's Super Storm Staggers Skywatchers!
- Defeating Hubble, from the ground!
- Defending Physics Against Cracked.com
- Weekend Diversion: The Best (and Easiest) Charity Ever!
Awards
2011: Winner - Charm Quark - 3QuarksDaily Prize in Science.

2010: Best Blog by physics.org.
2010: People's choice award by physics.org!
Recent Comments
- Pete Down Under on Saturn's Super Storm Staggers Skywatchers!
- srinivasan on Our Galaxy's Next Supernova
- BDNf on Real Science and Health News: From a Truth Vigilante
- Wow on Real Science and Health News: From a Truth Vigilante
- Candiru on Weekend Diversion: Interactive Scale of the Universe
- Torbjörn Larsson, OM on Weekend Diversion: Interactive Scale of the Universe
- Pronoein on Weekend Diversion: Interactive Scale of the Universe
- scooter on Weekend Diversion: Interactive Scale of the Universe
- Wow on Defending Physics Against Cracked.com
- Tristan on Weekend Diversion: Interactive Scale of the Universe
Archives
- February 2012
- January 2012
- December 2011
- November 2011
- October 2011
- September 2011
- August 2011
- July 2011
- June 2011
- May 2011
- April 2011
- March 2011
- February 2011
- January 2011
- December 2010
- November 2010
- October 2010
- September 2010
- August 2010
- July 2010
- June 2010
- May 2010
- April 2010
- March 2010
- February 2010
- January 2010
- December 2009
- November 2009
- October 2009
- September 2009
- August 2009
- July 2009
- June 2009
- May 2009
- April 2009
- March 2009
- May 2008
- April 2008
- March 2008
- February 2008
- January 2008
Blogroll
Astronomy/Physics- Ask an Astronomer
- AstroEngine
- Astronomy Lectures (ASP)
- AstronomyCast
- AstroPhotography
- Bad Astronomy
- Brian's Astronaut Page
- Cosmic Variance
- Dynamics of Cats
- Hubble Picture Gallery
- Not Even Wrong
- One Astronomer's Noise
- Orbiting Frog
- Picture of the Day (APOD)
- Planetary Society
- Second Sight
- Universe Today
About Ethan
Ethan fell in love with learning about how and why the Universe works the way it does at a very young age, and has spent his entire adult life pursuing that end. He received his B.A. in Physics, Classics, and the Integrated Science Program from Northwestern in 2000, and his Ph.D. in theoretical cosmology from Florida in 2006. He has a myriad of scientific publications and has been doing science writing since January, 2008.
He has held numerous jobs, including as a high school teacher, University instructor, and research scientist before moving to Portland, OR, where he taught at University of Portland before a stint as an Assistant Professor at Lewis & Clark College.
His passion is for sharing his knowledge of the world with others and learning more about it for himself. He can currently be found starting up his own business, writing here at ScienceBlogs, and renovating an old school bus into an off-grid mobile home. He is available for talks, seminars and conferences.
His current hobbies include writing, cooking, acrobatics, hiking/backpacking, guitar playing, and simply looking up. He is married to a fantastic woman named Jamie, and they have a dog together, Cordelia.

