It's been orbiting the planet since 2011
Ice? Geysers? Volcanos?
Forty-five years have passed since the fateful flight
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Today, as astronaut Scott Kelly prepares to embark on a one-year mission aboard the International Space Station, TIME launches A Year in Space, a multi-part...
Every comet that’s ever been spotted is a fugitive on the lam. Comets really have no business visiting the inner solar system at all. They don’t remotely...