
Earth's newly discovered 'Quasi-Moon' has been orbiting for thousands of years.
This week in science news, a "quasi-moon" that has been circling Earth since 100 B.C. was discovered, along with 153,000-year-old Homo sapiens footprints in South Africa and 2,700-year-old petroglyphs in Sweden. A "horror bunker" believed to be the largest test site of imperial Japan's infamous Unit 731 was unearthed in China. A man in Arizona survived a swarm attack by "killer" bees, and more teens with obesity are getting weight-loss surgery. Finally, a suspected Russian spy whale named Hvaldimir was spotted in waters off the coast of Sweden.



