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Credit: AP Photo/Mark Schiefelbein

SpaceX stock soars in debut and makes Elon Musk the first trillionaire

Ailing astronaut returns to Earth early in NASA’s first medical evacuation

What’s that in the sky? WTOP has the answers

Is NASA losing the moon race? All eyes are on the megarocket launching Monday for answers

NASA’s stuck astronauts welcome their newly arrived replacements to the space station

Polaris Dawn lights up early morning sky in DC area