China launches Shenzhou-15 manned spaceship, realizing historic crew gathering in orbit

• Manned spaceship, atop the Long March-2F Y15 carrier rocket, blasted off from the Jiuquan Satellite Launch Center in northwest China
• Three astronauts aboard Shenzhou-15 entered country's space station and met with another astronaut trio
• Shenzhou-15 mission will wrap up last stage of space station construction and kick off first stage of its application and development