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SpaceX launches 3 probes to study space weather and map the boundaries of our solar system (video)

IMAP (short for "Interstellar Mapping and Acceleration Probe") is the primary payload on today's flight. The roughly $600 ...

What to know about the missions just launched in NASA's cosmic carpool

Astrophysicist David McComas is leading a new SpaceX mission to the point between Earth and the sun, where scientists hope to study the boundary of the heliosphere.