On April 5th, 2010,Yamazaki entered space on the shuttle Discovery as part of mission STS-131. She is expected to return to Earth on April 18th, 2010. She is a JAXA astronaut, and the second Japanese woman to qualify as an astronaut. The first was Chiaki Mukai.
She sent this haiku from space to earth.
瑠璃色の 地球も花も 宇宙の子
Ruri iro no chikyu mo hana mo uchiyu no ko
bumi dan bunga juga
The earth and the flowers too
In azure color