Tracy Caldwell Dyson (born Tracy Ellen Caldwell; August 14, 1969) is an American chemist and NASA astronaut.

Sep 23, 2024 · Dyson launched to the space station on March 23, 2024, as a flight engineer on the Soyuz MS-25 spacecraft. She spent six months aboard the station as an Expedition 71 flight …

Sep 24, 2024 · NASA astronaut Tracy C. Dyson completed a six-month research mission aboard the International Space Station on Monday, returning to Earth with Roscosmos cosmonauts Oleg …

Oct 7, 2024 · NASA astronaut Tracy Caldwell Dyson reflected on her time in space during a post-flight press conference at NASA’s Johnson Space Center in Houston on Friday (Oct. 4).

Aug 8, 2007 · Tracy Caldwell Dyson is an American chemist and NASA astronaut. Caldwell Dyson was a Mission Specialist on Space Shuttle Endeavour flight STS-118 in August 2007. She was part of the …

Caldwell Dyson completed her first spaceflight aboard the Space Shuttle Endeavour on STS-118 from August 8 to 19, 2007. She became the 458th person and 290th American to fly in space.

Apr 6, 1998 · At the time of STS-118 Endeavour her name was "Tracy Ellen Caldwell" and at the time of Soyuz TMA-18 / ISS-23 / ISS-24 her name was "Tracy Ellen Caldwell-Dyson". Last update on …

Jul 16, 2025 · Dr. Caldwell Dyson has designed, constructed and implemented electronics and hardware associated with the study of atmospheric gas phase chemistry, and has developed and presented …

Jan 5, 2024 · Astronaut Tracy C. Dyson graduated from the College of Letters and Science at UC Davis with a doctorate in chemistry in 1997. In March, Dyson will travel to the International Space Station …

The path from academia to NASA is often fraught with challenges; yet for Tracy Caldwell Dyson, it seemed almost predestined. After completing her graduate studies in 1993, she found herself at …