WASHINGTON, Aug 8 (Reuters) - Scientists using an ocean drilling vessel have dug the deepest hole ever in rock from Earth's mantle - penetrating 4,160 feet (1,268 meters) below the Atlantic seabed ...

Four large asteroids ... The skyscraper-sized rock will travel by the planet from a point 2.8 million miles away, NASA said. A diagram shows its orbit around Earth, the sun and several other ...

While YR4 still has a nearly 97% chance to completely miss Earth in 2032, its odds of impact, which now stand at 3.1%, represent the highest risk level of any large space rock ever. Those odds may ...