NASA Astronaut Chris Williams to Discuss Space Station Mission

• NASA astronaut Chris Williams returns to Earth after a 241-day mission aboard the International Space Station (ISS).
• A news conference is scheduled for Tuesday, Aug. 4, at 2:45 p.m. EDT to discuss the expedition.

Mission Overview

• Williams served as a flight engineer for Expeditions 73 and 74.
• The mission spanned 241 days, concluding on July 26, and involved 3,856 orbits of Earth covering over 102 million miles.
• Crew members included Roscosmos cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev.
• The station hosted the arrival of six visiting spacecraft and the departure of eight during this period.

Scientific and Operational Highlights

• Research efforts focused on semiconductor crystal production, cancer treatment development, and improved manufacturing of materials for electronics and high-performance computers.
• Williams completed two spacewalks:
  • Preparation for space station power system upgrades.
  • Replacement of a faulty joint on the Canadarm2 robotic arm.

Media Information

• The post-mission conference will be streamed live via NASA's official platforms.
• U.S. media wishing to attend in person must contact the Johnson Space Center newsroom by 5 p.m. EDT, Friday, July 31.
• Phone participants must coordinate with the newsroom at least two hours before the event begins.