Tracy Caldwell Dyson is an American chemist and NASA astronaut. She has spent nearly 189 days in space during her career. Most recently, Tracy went viral after singing the National Anthem at the ...

Out of the 184 days that NASA astronaut Tracy Caldwell Dyson logged on her most recent mission on board the International Space Station, there are 31 minutes that stand out to her as being among ...

LOS ANGELES — NASA astronaut Tracy Caldwell Dyson shared her experiences on the International Space Station with elementary school students in her home state on Jan. 23. "Can you tell I really ...

March 3, Saturday -- Tracy Caldwell Dyson, a NASA astronaut and UC Davis alumna, will give a free public lecture beginning at 4 p.m. in the ballroom of the UC Davis Conference Center, followed by a ...

University of California, Davis, alumna and astronaut Tracy Caldwell Dyson is scheduled to lift off Friday, April 2, from Baikanour Cosmodrome, Kazakhstan, for a six-month stay on the International ...

NASA astronaut Tracy Caldwell-Dyson was back on Earth today after a capsule carrying her and two Russian crew-mates back from a six-month mission on the International Space Station safely touched ...

NASA astronaut Tracy Caldwell Dyson, Expedition 24 flight engineer, looks through a window in the Cupola of the International Space Station. A blue and white part of Earth and the blackness of ...

You just see this beautiful planet and it is out in the middle of nowhere,” said NASA astronaut Tracy Caldwell Dyson. “There’s no doubt that this planet was put here for a reason because ...

Spacewalkers Doug Wheelock and Tracy Caldwell Dyson found success after their first attempt to unbolt the large 780-pound pumping system on Saturday was frustrated by a balky ammonia line.

NASA astronauts Tracy Caldwell Dyson and Mike Barratt were forced to cancel their planned 6.5-hour spacewalk outside the International Space Station (ISS) on June 24 after Mission Control asked ...