Asteroid 2023 JF flew about 199,000 miles (320,000 km) away from Earth. It's estimated size is about 34 feet wide (10 meters) ...
The discovery is just the latest to come from the asteroid sample, which dates back to the dawn of the solar system.
We know the main reason that the age of the dinosaurs came to an end: an asteroid impact on the Yucatán Peninsula some 66 million years ago. But how the dinosaurs’ reign began is far less clear—and ...