Black hole fails to do its job

Astronomers have discovered what can happen when a giant black hole does not intervene in the life of a galaxy cluster. Using NASA's Chandra X-ray Observatory and other telescopes they have shown that passive black hole behavior ...

SLAC's upgraded X-ray laser facility produces first light

Just over a decade ago in April 2009, the world's first hard X-ray free-electron laser (XFEL) produced its first light at the U.S. Department of Energy's SLAC National Accelerator Laboratory. The Linac Coherent Light Source ...

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