September 17, 2012 marks the one hundredth anniversary of V. M. Slipher’s first observation of cosmological redshifts with the 24-inch Alvan Clark refractor at Lowell Observatory. This was one of the fundamental astronomical observations of the twentieth century, ultimately leading to the development of Big Bang cosmology.
To commemorate this historic observation, we are holding a conference from September 13-15 entitled Origins of the Expanding Universe. The registration fee is $190 and registration closes Friday, August 10. We encourage you to browse the workshop website, which includes an online registration page.