A ring of asteroid debris could have orbited Earth for tens of millions of years, and perhaps even have altered the planet's ...

Exoplanets in binary star systems usually orbit both stars, but astronomers have now spotted three planets orbiting one or ...

Scientists aren't sure if 2024 PT5 is an asteroid. At roughly 10 meters in length, 2024 PT5 is difficult to spot without a ...

Earth is set to become a two-moon planet for the next couple of months as a 10-metre-wide asteroid - officially known as ...

Scientists predict that the asteroid 'mini moon' will re-enter Earth's orbit again in 2055. This is due to its orbit being ...

2024 PT5 will be a temporary visitor, arriving in September and flying off again in November.

But the universe is throwing things for a loop by introducing a “second moon” for the next two months. In reality, it’s ...

Research suggests Earth might have once boasted a spectacular ring similar to Saturn's, formed from an asteroid breakup ...

The mini-moon, an asteroid called 2024 PT5, was spotted by the Asteroid Terrestrial-Impact Last Alert System (ATLAS) on Aug.

A new study co-led by the Smithsonian and the University of Arizona offers the most detailed glimpse yet of how Earth’s ...

The Earth has pulled in moons of this type before but none have ever stuck around as long as the moon we know.

A new study co-led by the Smithsonian and the University of Arizona offers the most detailed glimpse yet of how Earth's ...