Scientists locate planet similar in size to Earth

By WTOP Staff
November 8, 2012 | 7:03 PM

David DeVorkin, curator at the National Air and Space Museum

Quiz: Things you might not know about July 4

By Rick Massimo
June 29, 2022 | 5:31 AM

WASHINGTON — How well do you know your Independence Day trivia? Take our quiz. [custom_gallery]

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