Three Tucson scientists are featured in "Planetary Defenders," a new NASA documentary that premieres Wednesday about the ...

Space agencies from the US, Europe and Japan are all making plans to visit the asteroid Apophis when it makes an extremely close flyby in 2029 to learn how to deflect others like it ...

NASA is working on a new space observatory, NEO Surveyor, the first spacecraft designed to assess the threats of asteroids well in advance. The mission launch date is expected to be in the fall of ...

NASA and other global space scientists keep a close eye on asteroids known as near-Earth objects (NEOs). These are comets or ...

NASA is closely monitoring a building-sized asteroid as it makes its closest approach to Earth today, among a group of five other space rocks passing by our planet over the next two days. The asteroid ...

Despite a few months topping the hit list of the most dangerous asteroids, it is now certain that 2024 YR4 won’t hit our ...

NASA's James Webb Space Telescope captured images of the asteroid with two cameras, including the Near-Infrared Camera and ...

YR4 made headlines in February with the news that it had a chance of hitting Earth on Dec. 22, 2032, as determined by an ...

NASA shares update on potential for city-destroying asteroid and says the chance of the asteroid hitting Earth are very slim.

This is a still from an animation showing asteroid 2024 YR4 as it passes by Earth and heads toward its potential impact with the Moon. This 3D shape of the asteroid was determined from data obtained ...

The asteroid that once had a small chance of striking Earth and now might slam into the moon resembles a spinning hockey puck ...

Astronomers have traced the origin of asteroid 2024 YR4, which appears to have broken off from a larger space rock.