Apollo moonwalker Buzz Aldrin advises NASA to embrace China's emerging expertise in the human spaceflight arena as the Chinese prepare for a piloted launch that could occur next week. "We'd learn a little bit more about China's space plans if we extended a hand of welcome," said Aldrin, part of the Apollo 11 lunar expedition crew, with Neil Armstrong and Michael Collins, that carried out the first landing mission of humans on the Moon in July 1969. The United States should consider rolling out the welcome mat for Chinese space flyers at the International Space Station, Aldrin says. Furthermore, it...