Live coverage: Kennedy Space Center to reopen Friday

The four-member crew will now fly onboard Dragon Endurance instead of SpaceX’s fifth Crew Dragon spacecraft as originally intended. Launch has moved up to Wednesday, March 12, “pending mission readiness and completion of the agency’s certification of flight readiness process.”

This collection of photographs shows the National Reconnaissance Office’s classified NROL-45 payload, already encapsulated in the Delta 4 nose cone, being moved from the payload processing facility at Space Launch Complex 6 and lifted atop the United Launch Alliance rocket for flight from Vandenberg.

Sensors delivered to Mars by NASA’s InSight lander have detected the first signals suggesting seismic activity on the red planet, a major discovery that extends the field of seismology to a new world beyond the Earth and the moon.