California, June 10 -- SpaceX Vice President of Build and Flight Reliability, William Gerstenmaier, highlighted the company's focus on safety and reliability in its Dragon capsule missions, saying the "design changed several propulsion components to make them reliable and more useful."

"So this isn't just the same Dragon capsule you're flying. We've actually made some improvements and actually made it better to continue to keep flying safe," Gerstenmaier said on Tuesday (local time) in a Axiom 4 post-launch readiness review press conference.

"So far this year, SpaceX teams have long spring drag missions, two of which were human spaceflight missions, with all of them launching within 38 days of one another. And while we were working on t...