Obituary: Frank Caldeiro

Astronaut Frank Caldeiro (b.1958) died of brain cancer on October 3. Caldeiro worked on 52 shuttle launches before being selected for the astronaut corps in 1996. The first Argentinean to train for spaceflight, Caldeiro specialized in cryogenics and propulsion systems and directed the high-altitude atmospheric research experiment program carried onboard NASA’s WB-57 aircraft.