Sergei Mikaev

NASA astronaut Chris Williams returned to Earth after 241 days in space, completing over 100 million miles and 3,800 orbits, landing in Kazakhstan with two Russian cosmonauts. During his mission, he conducted research on cancer treatments, semiconductor manufacturing, and spacecraft systems, including two spacewalks.

A U.S.-Russian space crew, including NASA astronaut Chris Williams and Russian cosmonauts Sergei Kud-Sverchkov and Sergei Mikaev, landed safely in Kazakhstan after a 241-day mission on the International Space Station. The mission highlights ongoing U.S.-Russia cooperation in space despite diplomatic tensions following Russia's 2022 invasion of Ukraine.

A U.S.-Russian space crew, including NASA astronaut Chris Williams and Russian cosmonauts Sergei Kud-Sverchkov and Sergei Mikaev, landed safely in Kazakhstan after an eight-month mission on the International Space Station. The crew's 241-day mission marked Williams and Mikaev's first spaceflight and Kud-Sverchkov's second, with cooperation continuing between the U.S. and Russia despite geopolitical tensions.

A U.S.-Russian space crew, including NASA astronaut Chris Williams and Russian cosmonauts Sergei Kud-Sverchkov and Sergei Mikaev, landed safely in Kazakhstan after an eight-month mission on the International Space Station. Their 241-day mission marked the first for Williams and Mikaev and the second for Kud-Sverchkov, with ongoing U.S.-Russia cooperation on the space station despite geopolitical tensions.

A U.S.-Russian space crew, including NASA astronaut Chris Williams and Russian cosmonauts Sergei Kud-Sverchkov and Sergei Mikaev, landed safely in Kazakhstan after an eight-month mission on the International Space Station. Despite geopolitical tensions, the U.S. and Russia continue cooperating on space projects, with a newly arrived crew joining Expedition 75.

Russian cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev installed a sun-watching telescope on the International Space Station during a 6-hour spacewalk on May 27, 2026. The mission marked a successful technical operation in space.