NASA’s asteroid mission packs away its cargo. Next stop: Earth.

A NASA spacecraft 200 million miles away from Earth has packed up a sample of an asteroid it collected last week.That chased away concerns that it had traveled for years across the solar system but lost much of the scientific payload it had gone to collect. The mission’s managers are now beginning preparations to head back to Earth.“I am confident, and this team is confident, that we still have hundreds of grams of sample that we plan to bring back to the Earth,” Dante Lauretta