Following is a summary of current science news briefs.
China's manned space lab to re-enter atmosphere on Friday
China's manned space lab Tiangong-2 has finished experiments and will re-enter Earth's atmosphere on July 19, authorities said on Saturday. A small amount of debris is likely to fall into the designated safe waters of the South Pacific Ocean, the China Manned Space Engineering Office said in a statement.
(With inputs from agencies.)