Video: Alice Bowman, New Horizons mission operations manager, previews Ultima Thule flyby (members only)

The launch of a NASA ionospheric research satellite off Florida’s east coast is targeted for Oct. 9 after persistent technical problems with its air-dropped Pegasus rocket stymied two launch opportunities last year.

Originally expected to take off Saturday, the launch of SpaceX’s first operational Crew Dragon mission was delayed to Sunday because of expected high winds at the Kennedy Space Center and weather off-shore where the Falcon 9 rocket’s first stage will attempt to land on a SpaceX droneship. The company plans to re-use the booster for the next Crew Dragon flight.

Veteran Russian cosmonaut Oleg Kononenko, flanked by Canadian flight engineer David Saint-Jacques and NASA astronaut Anne McClain, launched toward the International Space Station at 6:31 a.m. EST (1131 GMT) Monday from the Baikonur Cosmodrome in Kazakhstan, the first crew launch for Russia’s space program since a Soyuz booster failure led to the emergency landing of a two-man crew in October. The Soyuz MS-11 spacecraft docked with the station at 12:33 p.m. EST (1733 GMT).