There is a very small chance that an asteroid capable of taking out an entire city could strike Earth in less than eight years. But even if this asteroid is hurtling our way, humanity is now able to defend itself against such a threat, experts say.| phys.org
A pair of asteroid dynamics researchers from Universidad Complutense de Madrid Ciudad Universitaria have found that a small asteroid will make one orbit around the Earth starting this month before departing back into other parts of the solar system.| phys.org