Big asteroid has close encounter with Earth

CAPE CANAVERAL, Fla., (Reuters) – A black asteroid as  big as an aircraft carrier zoomed past Earth on Tuesday,  delighting astronomers who trained telescopes on the ancient  body in hopes of learning more about its composition and  origin.

With a diameter estimated at 400 meters, or about a quarter  of a mile, Asteroid 2005 YU 55 is the biggest asteroid to make  a close pass by Earth since 1976.

During its closest approach, which occurred at 6:28 p.m.  EST (2328 GMT), it was inside the orbit of the moon, about  200,000 miles (322,000 km) above the planet. It posed no threat to either.