Should YR4 strike the Moon, the collision could eject up to 100 million kilograms of lunar debris into space. A portion of this material might enter Earth’s orbit, posing risks to satellites and other ...

An object thought to have come from another star has been seen entering the solar system at high speed, and is expected to ...

Earth will have a close shave with two asteroids - Apophis and Asteroid YR4 2024. In 2029, 99942 Apophis will fly by at an eerily close distance and will be visible even to the naked eye. In 2032, YR4 ...