The LIGO Hanford Observatory near the Tri-Cities and its twin in Louisiana detected ripples of time and space passing through ...

The Trump administration has proposed closing either the LIGO Hanford observatory in WA or its twin in Louisiana.

The LIGO Hanford Observatory near the Tri-Cities and its twin in Louisiana detected ripples of time and space passing through Earth from the most massive collision of black holes ever observed, a ...

A collision observed between two black holes, each more massive than a hundred suns, is the largest merger of its kind ever recorded, according to new research. Gravitational waves were predicted by ...

An international team of physicists discovered the largest-ever merger of 2 black holes through a phenomenon known as ...

If black holes weren't terrifying enough, two especially large ones are merging together, experts have discovered.

Eighty years after the U.S. used the atomic bomb on Japan, debates on nuclear weapons remain fraught. In Los Alamos, the ...