Orion abort test post-launch briefing (members only)

The countdown for a planned launch of a SpaceX Falcon 9 rocket from NASA’s Kennedy Space Center in Florida automatically aborted in the last second before liftoff Sunday after an on-board computer detected unexpected data during an engine power check.

On the eve of the launch of his country’s first communications satellite on a Falcon 9 rocket, the chief executive of BulgariaSat credited SpaceX’s cost-cutting ways with making space accessible for small nations and money-conscious companies like his own.

A Russian Soyuz rocket has reached its last stop before liftoff Friday with two Russian cosmonauts and veteran NASA flight engineer Jeff Williams, who is slated to break the record for the most cumulative time spent in space by a U.S. astronaut.