Reuters Science News Summary

Following is a summary of current science news briefs. Boeing delays by months test flights for U.S. human space program: sources

Boeing Co has delayed by at least three months its first uncrewed flight to the International Space Station under NASA's human spaceflight program, and pushed its crewed flight until November, industry sources said on Wednesday. Reuters reported last month that NASA has warned Boeing and rival contractor SpaceX of design and safety concerns the companies need to address before flying humans to space. Little sun bear's facial mimicry reveals complex social skills

Sun bears, the smallest of the world's eight bear species, are generally solitary animals, content to spend most of their time alone outside mating season, foraging for fruit, rodents, birds and insects in Southeast Asian tropical forests. But, scientists said on Thursday, they also possess an unexpected social skill that puts them in elite company alongside humans and some of our close evolutionary cousins: the ability to mimic another bear's facial expressions in a subtle type of communication.