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Newly discovered asteroid has a 1.2% chance of hitting Earth in …
Asteroids - NASA Science
An Asteroid Has a 1-in-63 Chance of Hitting Earth in 2032
Asteroid | Definition, Size, & Facts | Britannica
Asteroid - Wikipedia
Asteroid Facts - Science@NASA
Enormous, mountain-size asteroid will be visible from Earth this ...
What Is an Asteroid? | NASA Space Place – NASA Science for Kids
Eyes on Asteroids - NASA/JPL
Asteroid Fast Facts - NASA