Trans-Neptunian objects (TNO) are some of our solar system's lesser-known objects. They number in the thousands, and they get their name from their orbits. These dwarf planets orbit the sun at a ...

Beyond the reaches of Neptune, the outskirts of our solar system are teeming with thousands of icy celestial bodies like Pluto. For years, it's been an accepted tenet of astronomy that, with the ...

New evidence suggests that billions of years ago, a star may have passed very close to our solar system. As a result, thousands of smaller celestial bodies in the outer solar system outside Neptune's ...

Although astronomers observe and study the universe to solve many mysteries, some celestial objects present in our solar system remain poorly understood. This is the case with this trans-Neptunian ...

Add Yahoo as a preferred source to see more of our stories on Google. In a distant corner of our solar system called the Kuiper Belt, icy bodies lurk in the darkness, orbiting our sun at vast ...

A new study authored by Southwest Research Institute scientists Rodrigo Leiva and Marc Buie reveals the binary nature of a trans-Neptunian object (TNO). Leiva and Buie utilized data obtained by the ...

The trans-Neptunian object nicknamed Ammonite moves across the sky over several hours in May 2023. Its diameter is estimated to be between about 135 and 235 miles. NAOJ / ASIAA Astronomers have just ...

Beyond the orbit of Neptune, there is a population of small celestial bodies that have orbits far away from the Sun. The first known trans-Neptunian object (TNO) was Pluto, and since then, thousands ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Astronomers have found a distant celestial body — ...

In the race towards the discovery of a ninth planet in our solar system, scientists from around the world strive to calculate its orbit using the tracks left by the small bodies that move well beyond ...

Add Yahoo as a preferred source to see more of our stories on Google. Beyond the reaches of Neptune, the outskirts of our solar system are teeming with thousands of icy celestial bodies like Pluto.