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 ...

NASA warns of asteroid 2025 HY2, the size of a Boeing, approaching Earth on May 7 at 48,900 kilometres per hour.

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NASA has issued a warning about asteroid 2023 KU ... Expected to safely pass Earth on April 11, 2025, at a distance of 1 million km, its massive size raises concerns. Belonging to the Apollo ...

They’ve concluded that the Earth was built in the same way that you would build a big snowball to make a snowman. The mass that would become our home rolled through planetary debris – rocks floating ...

While several small asteroids pass within this distance of Earth a few times a week, this is the closest by any known asteroid of this size or bigger in 13 years -- since asteroid Toutatis in 2004 ...

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

The once-dubbed "city-killer" asteroid 2024 YR4 has surprised scientists with its 'unusual' shape as it rapidly rotates through space on a trajectory that could see it hit the moon.

This asteroid is about the size of a large building, and it's hurtling along at tens of thousands of kilometres per hour. If ...

While not classified as 'potentially hazardous' due to its distance, its size and velocity ... massive craters and widespread destruction. The last asteroid that hit Earth was the Chelyabinsk ...

Mascons can occur within meteor impact structures due ... then it "would be the greatest impact crater known" on Earth in terms of its size, the authors wrote. In the 2015 study, researchers ...

They have also caused craters on Earth. Asteroids made more contact ... It's not clear what would happen if an asteroid of this size were to strike the moon. CBS News space consultant Bill Harwood ...