Add Yahoo as a preferred source to see more of our stories on Google. The Trump administration wants to close one of the nation’s two cutting-edge observatories — one of them in the Tri-Cities — that ...

RICHLAND – The renowned experimental physicist and Nobel laureate whose brainchild resulted in the LIGO observatory at Hanford in Eastern Washington has died. Rainer Weiss, 92, died Aug. 25 in ...

LIGO Hanford detected record-setting black hole merger, challenging current knowledge. Merged black holes spun near general relativity’s limit, baffling scientists. Funding cuts threaten U.S.

A tabletop model demonstrates how lasers are used in the 2 1/2 mile tunnels at LIGO. The laser beam on the right is split and sent to mirrors on the left and lower right to bounce back to the center.

The Trump administration wants to close one of the nation's two cutting-edge observatories - one of them in the Tri-Cities - that made scientific history and launched a new way to study the universe.