Snapshots from Atlas 5 launch

A critical test firing Saturday of the four main engines powering the first stage of NASA’s gargantuan Space Launch System moon rocket is the final major hurdle before the fully assembled booster’s costly, oft-delayed launch late this year on an unpiloted test flight.

The last Dragon flight from pad 39A was the CRS-33 mission in August 2025. SpaceX is preparing for the just the second pad 40 launch supporting NASA’s Commercial Crew Program no earlier than Feb. 11.

Wrapping up a two-day chase since launching from Virginia’s Eastern Shore, a commercial Cygnus cargo craft arrived at the International Space Station Monday with more than 7,200 pounds of supplies and experiments, the second freighter to reach the orbiting complex in 15 hours.