Live coverage: Atlas 5 countdown and launch journal

Launching with a Spanish radar observation craft and the first two experimental satellites for SpaceX’s planned global broadband network, a Falcon 9 rocket fired away from California’s Central Coast shortly before sunrise Thursday after several days of delays.

Air Force meteorologists are giving favorable weather odds for the Delta 4 rocket to launch a pair of space surveillance satellites early Friday morning from Cape Canaveral.

Persistent problems with a seismometer instrument package will keep NASA’s InSight Mars lander from departing for the red planet during a March launch period, and officials said they will consider shelving the $675 million project if the issues prove too costly to fix.