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Astronaut Nicole Stott, director of the Space for Art Foundation, uses the power of Twitter to answer common questions about space. Is there an age limit for sp...
Astronaut Mike Massimino answers the internet's burning questions about the far reaches of space. How do astronauts get leverage when screwing things in? After ...
Former NASA astronaut Scott Kelly uses the power of Twitter to answer some common questions about astronauts. How fast is the international space station? Can y...
Astrophysicist Hitoshi Murayama answers the internet's burning questions about space! Are there more stars in space than grains of sand? Can the shapes of cons...