BAIKONUR: Astronauts from the United States, Russia and Japan are poised for their holiday season space mission tomorrow, when they are to blast off to the International Space Station from Russia's remote space complex in southern Kazakhstan. Their Soyuz TMA-17 rocket is primed at the Baikonur launch pad — where Yuri Gagarin made the first human trip into orbit in 1961 — for a mission that will boost the number of crew at the orbital laboratory to five members. American Timothy J. Creamer of NASA, Russian cosmonaut Oleg Kotov and Soichi Noguchi of Japan are to blast off Monday at 3:52 am local time (2152 GMT) in the first-ever launch of a Soyuz spaceship on a winter night. After the liftoff in central Asia, the Soyuz will travel for about two days before docking with the space station 350 kilometres above Earth. Striking a festive mood, the space station this week beamed a video Christmas greeting to Earth. On its Web site, NASA has created a series of virtual postcards for members of the public to send to the space station with their holiday greetings. The three astronauts will be joining Jeff Williams, another American NASA astronaut, and Russia's Maxim Surayev, who have been alone on the space station since the start of the month. The first space station crew arrived in 2000, two years after the first part was launched.