Cleon J. "Pex" Welsh, Jr., 80, of Marietta, passed away unexpectedly on Saturday, December 10, 2016. He was born in Columbia to the late Cleon James, Sr., and Iona Weaver Welsh and was a lifelong ...

Francisco on 24 July. Dr Barstow said “J-PEX is the most sensitive X-ray instrument yet launched into space and its first flight was a great success.

Astronomers have successfully tested a sensitive new X-ray telescope by blasting it into the sky aboard a rocket. Despite having only a brief, five-minute viewing window, it returned useful scientific ...