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David Zaslavsky
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A study of 19 quasars — extremely bright black holes at the centers of galaxies — showed the matter swirling around them spins in accordance with where they reside. Galaxies form a vast network of clumps and filaments connecting them, the cosmic web known…

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My thoughts on keeping the legacy of Science Online (at least the good parts) alive. If you ever enjoyed a Science Online conference, read this!
  #sciox  

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This sounds really cool: an insider's look at nuclear physics from the comfort of your own home!

(Full disclosure: I might be giving one of these seminars in the future)
Join us for a free and open seminar on Nuclear Energy by Dr. Jeff Terry from the Illinois Institute of Technology!

Title: Nuclear Energy and its future in US Energy Policy

Abstract: Energy use is related to quality of life. With only 1 billion of the earth's inhabitance within the quality zone, another 5 billion people will need to be brought up to this standard. This will require a tremendous amount of energy, from where will this energy supply come? Currently, our energy supply is primarily derived from fossil fuels. We will likely run out of these in the next 100 years given the current rate of consumption. It is not possible to conserve ones way out of this situation. Energy will still be required to meet daily use. One possible energy mix that might meet the needs of the next 100 years, is a 1/3 fossil fuel, 1/3 renewables, and 1/3 nuclear. For this to occur solar and wind energy will need to grow from 0 to 33%, nuclear would need to grow from 17% to 34%. I am afraid that this is not possible without significant changes in the political climate in the United States. Local zoning boards are preventing wind turbine installations. No new nuclear plants have been built in the U. S. since work on the River Bend plant began in 1977, one generation ago. This talk will focus on how nuclear power can be expanded to meet the demand for energy. It will also cover some of the difficulties involved in increasing the energy supply from nuclear and renewable sources.

Dr. Terry's webpage:
http://mrmac.mr.aps.anl.gov/~jterry/

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The main purpose of this question is to share beautiful scientific pictures, preferably with an educational aspect. Check out the answers! 

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Some math for pi day
Today is often referred to as “Pi Day”, since in the United States and various other countries, the date March 14 is written as 3/14. Beyond those who write the date 14/3, there are a few who object to Pi Day for other reasons. For pedants who want to…
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