NASA's SpaceX Crew-11 flight is more than just a crew rotation — it lands during a historic moment in spaceflight: the 25th anniversary of uninterrupted human habitation aboard the ISS.

An international crew is readying for Thursday's planned launch of a NASA mission to the International Space Station after arriving at the Kennedy Space Center.

Two NASA satellites rocketed into orbit from California aboard a SpaceX Falcon 9 rocket Wednesday, commencing a $170 million mission to study a phenomenon of space physics that has eluded researchers since the dawn of the Space Age.