May 28 (UPI) -- China Wednesday launched its Tianwen-2 space mission to collect asteroid samples and conduct a main-belt comet study. A LongMarch 3B rocket lifted off from Xichang Satellite Launch Center. The Long March 3B Y110 rocket lifted off toward the near-Earth asteroid 469219 Kamo'oalewa and is expected to take a year to reach the asteroid. Asteroid samples are scheduled to return to Earth by 2027 as the mission heads for a rendezvous with the 311P/Pantstarrs comet around 2035. "All