On Oct. 2, asteroid 2019 SD8 passed at about 331,000 miles away. Researchers at the Catalina Sky Survey near Tucson, Arizona, found the 38-foot-wide rock, about the size of a city bus.

A “city-killer” asteroid whizzed by Earth on Thursday, startling astronomers who didn’t pick up the rock’s trajectory until days before it passed the planet, according to a report.

The asteroid 2019 OD passed the closest, flying closer to the Earth than the moon. It will cross Earth’s orbit within 222,164 miles of the surface. The moon is 238,900 miles away.

When Asteroid 2019 OK careened through our neighborhood on Thursday, it came within 45,000 miles of Earth. That’s close, cosmically speaking; the moon is nearly 240,000 miles away.

The rock—named Asteroid 2019 OK—was 187 to 427 feet (or 57 to 130 meters) wide. It wasn't big enough to cause dinosaur-level extinction, but scientists have referred to it as a “city killer ...

Thanks to powerful telescopes that can detect large objects at extreme distances, we earthlings have a pretty good idea of the space rocks that pose … ...

On the webpage for imaginary asteroid "2019 PDC," NASA warns that it "does not describe a real potential asteroid impact." Chodas deliberately designed this pretend threat to stress the ...

The asteroid 2019 OD passed the closest, flying closer to the Earth than the moon. It will cross Earth’s orbit within 222,164 miles of the surface. The moon is 238,900 miles away.