

An engineer-astronaut who logged over 131 days in space, his mission dramatically extended by the Columbia disaster while he was living aboard the Space Station.
Dan Tani's path to space was carved through precision engineering, a discipline that defined his approach to being an astronaut. Selected by NASA in 1996, his first flight aboard Endeavour in 2001 was a textbook logistics mission to the International Space Station (ISS). His second assignment, however, became a chapter in spaceflight history. Launching on STS-120 in 2007, Tani was midway through a planned four-month stay on the ISS when the Space Shuttle Columbia was lost. This tragedy grounded the shuttle fleet, stranding Tani and his crewmates in orbit for an additional two months as engineers scrambled to ensure their safe return. He handled the prolonged isolation and uncertainty with the calm of a problem-solver, conducting vital science and maintenance. Back on Earth, his career continued at NASA in key engineering roles, his experience a testament to resilience in the face of both the calculated risks and unforeseen perils of space exploration.
1946–1964
The largest generation in history at the time. Shaped by postwar prosperity, the Vietnam War, the sexual revolution, and Watergate. They questioned every institution their parents built — then ran them.
Daniel was born in 1961, placing them squarely in the Baby Boomers. The events that shaped this generation — postwar prosperity, civil rights, Vietnam, and the counterculture — shaped the world they entered and the choices available to them.
The biggest hits of 1961
#1 Movie
101 Dalmatians
Best Picture
West Side Story
#1 TV Show
Wagon Train
The world at every milestone
Yuri Gagarin becomes the first human in space
Star Trek premieres on television
Nixon resigns the presidency
Star Wars premieres; Elvis dies
Iran hostage crisis begins; Three Mile Island accident
Michael Jackson releases Thriller
Soviet Union dissolves; World Wide Web goes public
September 11 attacks transform the world
Osama bin Laden killed; Arab Spring sweeps the Middle East
January 6 Capitol breach; COVID vaccines roll out globally
His mother was killed in a car accident while he was aboard the International Space Station in 2007.
He holds a bachelor's degree in mechanical engineering from MIT and a master's from the same institution.
He is of Japanese American descent.
During his extended ISS stay due to the Columbia disaster, he celebrated his birthday in orbit.
“In space, every procedure, every checklist, is a covenant with the vacuum.”