Near-Earth asteroid Bennu has a slim chance of colliding with Earth in 2182. If it does, the impact could trigger a global winter that affects our planet for years.
Explore the universe with news on fascinating discoveries ... The researchers found 14 of the 20 amino acids that are used in biology to build proteins, and 19 non-protein amino acids, many ...
Asteroid samples fetched by NASA hold not only the pristine building blocks for life but also the salty remains of an ancient water world, scientists reported Wednesday.