Astrotwins

Adventure into outer space with twins Mark and Scott Kelly in this out-of-this world series from real-life astronaut and New York Times bestseller Mark Kelly!

Latest Book in Series

Twins Mark and Scott discover an abandoned Apollo command module and take off to rescue a stranded Russian cosmonaut in the second Astrotwins adventure from retired NASA astronaut and the #1 New York Times bestselling author of Mousetronaut, Mark Kelly.

Mark and Scott Kelly, who are mostly known...

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