Odds of "city-killer" asteroid hitting Earth in 2032 rise, then fall again, NASA says
Asteroid's odds of hitting Earth fluctuate as NASA tasked with studying it
Key facts about asteroid that could hit Earth in 2032
Egypt announces discovery of the lost tomb of King Thutmose II
Study finds growing levels of microplastics in human brains
NASA rover captures images of "mother-of-pearl" clouds on Mars
Mexican long-nosed bats now being tracked via "eDNA" using their saliva
Elusive, palm-sized shrew caught on camera for the first time
