Liftoff is scheduled for 2:38 a.m. EST (0738 GMT) on Wednesday.
Two space tourists will launch toward the International Space Station on Wednesday (Dec. 8), and you can watch the action live.
A Russian Soyuz rocket carrying Japanese billionaire Yusaku Maezawa, video producer Yozo Hirano and cosmonaut Alexander Misurkin is set to launch at 2:38 a.m. EST (0738 GMT or 1:38 p.m. local time) Wednesday from Baikonur Cosmodrome in Kazakhstan.