NASA Update on SN 1987a

NASA updated their Supernova 1987a page with some excellent imagery and a cool 3D visualization of the expanding ring which is remnant of a star observed exploding in 1987.

NASA 3D Visualization

https://www.nasa.gov/sites/default/files/thumbnails/image/sn1987amodel.gif

Read more about this supernova at the NASA website: 

"The Dawn of a New Era for Supernova 1987a"

https://www.nasa.gov/feature/goddard/2017/the-dawn-of-a-new-era-for-supernova-1987a

Railroad History and Saginaw's Castle Museum

I had an enjoyable visit at the Castle Museum in Saginaw this weekend and talked at length with Bill Falkenberg, a railroad enthusiast and volunteer at the museum. The visit led to further research on railroads in Michigan and a very informative online map at http://www.michiganrailroads.com/RRHX/Evolution/1880s/Lower1888.htm.  It was interesting to think about how our history is interwoven with the development of the railroads in our state.

Much more information about railroad history in Michigan is available at http://www.michiganrailroads.com/RRHX/RRHXHome.htm