Three crew members are heading home after almost six months on the International Space Station. Reid Wiseman of the United States, Alexander Gerst of Germany, and Maxim Suraev of Russia floated themselves into a Soyuz capsule Sunday for their three-and-a-half-hour journey to Earth. They landed in Kazakhstan. Their departure leaves three people aboard the ISS, which has been manned continuously since Nov. 2, 2000. Three additional crew members are due to head to the station on Nov. 23.