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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

During her six months on the International Space Station, Americanastronaut Tracy Caldwell Dyson experienced lots of laughs ? and lots of stress. Caldwell Dyson, of NASA, returned to Earth Sept.

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.

In an interview with CBS News, the station's three NASA astronauts--robot arm operator Shannon Walker and spacewalkers Douglas Wheelock and Tracy Caldwell Dyson--said the impromptu repair went ...

Astronauts Douglas Wheelock and Tracy Caldwell Dyson made final preparations Friday for a planned spacewalk Saturday to replace a faulty ammonia pump module in the International Space Station's ...

Douglas Wheelock and Tracy Caldwell Dyson went into the spacewalk hoping to replace the ammonia coolant pump with a spare at the international space station. But they were forced to leave the ...