An asteroid big enough to wipe out a city will zip harmlessly between Earth and the moon’s orbit this weekend, missing both celestial bodies.
An asteroid big enough to wipe out a city will zip harmlessly between Earth and the moon’s orbit this weekend, missing both celestial bodies.
Saturday’s close encounter will offer astronomers the chance to study a space rock from just over 100,000 miles (168,000 kilometers) away. That’s less than half the distance from here to the moon, making it visible through binoculars and small telescopes.
