The city-killer asteroid's Moon impact risk has almost more than doubled, according to new NASA reports. Here's what we know.

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

Now a different group has looked at its orbital past, suggesting a likely place of origin: the middle of the main asteroid ...

YR4 asteroid is thought to be hockey puck shaped and house-sized, with the asteroid, detected in December, initially thought ...

A recently discovered asteroid, 2024 YR4, sparked the first-ever global alert from the International Asteroid Warning Network ...

YR4 won't hit Earth, but scientists now estimate a 4% chance it could strike the Moon, possibly affecting space missions.

THE odds of a “city killer” asteroid that once threatened Earth instead smashing into the moon have just doubled. YR4 was ...

Consider the dramatic visual and gravitational consequences if a large asteroid struck and fractured the Moon.

NASA says the chances of an asteroid dubbed ‘2024 YR4’ hitting the lunar surface have doubled since February. The odds of an ...

An asteroid which could be up to 220 feet wide will now miss Earth - but the chances of the space rock slamming into the moon ...

Lindley Johnson has been a pioneer in blueprinting warning and response scenarios to any potential impact of Earth by an ...

An anomaly has forced the Japanese asteroid-sampling spacecraft Hayabusa2 into protective "safe mode" while journeying ...