WATCH LIVE: NASA spacewalk

June 26, 2020 | 7:37 AM

NASA astronauts Chris Cassidy and Robert Behnken begin the replacement of batteries for one of the power channels on the International Space Station.

WTOP photo tour: Historic nuclear power plant at Fort Belvoir to be dismantled

By Neal Augenstein
August 28, 2020 | 4:55 AM

The red button was always there — just in case. Most people never knew the United States' first nuclear power reactor to provide sustained electricity to a commercial power grid was — and is — on the grounds of Fort Belvoir, the U.S. Army installation in Fairfax County, Virginia.

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