• On Sunday, China sent into space a rocket dubbed Long March 5B from a pad on the southern island province of Hainan. The spacecraft carries an experimental solar-powered new lab that will be added to its Tiangong Space Station.
• The booster was huge — more than 175 feet tall and weighing more than 1.8 million pounds. Space experts are worried that some debris from its core stage might not fully disintegrate as it re-enters Earth’s atmosphere.
• The rocket shed its 46,000-pound first stage in space, which means it will orbit the Earth for some unknown time, ending with the booster re-entering the atmosphere. While experts don’t think it will land in an inhabited area, just where it does land is unknown.

Tagged: Space