Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

From Newton’s falling apple to Einstein’s curved spacetime, our understanding of gravity has come a long way, yet this ...

The Earth stands alone in the solar system as a habitable world, as far as we know. But that doesn’t mean we don’t get visitors, most often in the form of (usually harmless) asteroids. Some even ...

Our planet has apparently had a small companion that went undetected for decades. What took so long to find it and why was it ...

Every year, the moon, Earth's reliable celestial companion for 4.5 billion years, is getting 1.5 inches away. The distance to ...

"The complexity of the exo-Neptunian landscape provides offers a unique window onto the processes involved in the formation ...

The observatory recorded the asteroid at 04:40am UAE time, carrying out precise astrometric measurements to determine its ...

In scientific terms, it is normal for some predictions to fail. Not so much in the how, but in the when. A few years ago, some astronomical experts predicted that an asteroid would ...

Specialists specified that the asteroid’s next passage near Earth will take place in 11 years, on August 20, 2036 ...

The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, ...

An asteroid the size of a skyscraper is approaching Earth at 24,136 miles per hour. The giant asteroid will be at its closest ...

Earth will move between Saturn and the sun this weekend, offering prime views of Saturn in what's known as "opposition." Here's what to know.