Bennu is significantly smaller than the 6-mile-wide (10 km) behemoth that created the Chixulub crater and wiped out the dinosaurs about 66 million years ago. However, even a Bennu-size asteroid ...

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.

The asteroid, named "Bennu" has come close to Earth a few times since it was first discovered in 1999. RELATED: NASA reveals sample from asteroid Bennu contains water, lots of carbon: the building ...